Top 111 Deduction Quotes & Sayings - Page 2

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Last updated on April 15, 2025.
In every science, after having analysed the ideas, expressing the more complicated by means of the more simple, one finds a certain number that cannot be reduced among them, and that one can define no further. These are the primitive ideas of the science; it is necessary to acquire them through experience, or through induction; it is impossible to explain them by deduction.
Even tax breaks that are supposed to help the middle class too often skew toward the wealthy. Consider the mortgage interest deduction. While political leaders in both parties have long considered it untouchable, it actually helps those at the top of the income scale far more than those at the bottom.
There was something dead in my heart. I tried to figure out what it was by the strength of the smell. I knew that it was not a lion or a sheep or a dog. Using logical deduction, I came to the conclusion that it was a mouse. I had a dead mouse in my heart.
Indeed, if a chief question does remain: how is the power to think possible? - The power to think right and left, before and without, with and above experience? then it does not take a deduction to prove the genealogical priority of language.
Lacking the direct test of success or failure, the voter tends to turn, not to those politicians whose measures have the best chance of success, but to those with the ability to 'sell' their propaganda. Without grasping logical chains of deduction, the average voter will never be able to discover the error that the ruler makes.
Here is the tragedy of theology in its distilled essence: The employment of high-powered human intellect, of genius, of profoundly rigorous logical deduction—studying nothing. In the Middle Ages, the great minds capable of transforming the world did not study the world; and so, for most of a millennium, as human beings screamed in agony—decaying from starvation, eaten by leprosy and plague, dying in droves in their twenties—the men of the mind, who could have provided their earthly salvation, abandoned them for otherworldly fantasies.
Jesse Jackson's in trouble. They're going after this tax thing. Jesse said he will amend his taxes to show the money that he paid to his mistress. See, he has just one mistress. Jesse uses the standard mistress deduction. As opposed to Clinton, who had to itemize.
Where did I get it from? Was it by reason that I attained to the knowledge that I must love my neighbour and not throttle him? They told me so when I was a child, and I gladly believed it, because they told me what was already in my soul. But who discovered it? Not reason! Reason has discovered the struggle for existence and the law that I must throttle all those who hinder the satisfaction of my desires. That is the deduction reason makes. But the law of loving others could not be discovered by reason, because it is unreasonable.
There is nothing in which deduction is so necessary as in religion," said he, leaning with his back against the shutters. "It can be built up as an exact science by the reasoner. Our highest assurance of the goodness of Providence seems to me to rest in the flowers. All other things, our powers, our desires, our food, are all really necessary for our existence in the first instance. But this rose is an extra. Its smell and its colour are an embellishment of life, not a condition of it. It is only goodness which gives extras, and so I say again that we have much to hope from the flowers.
If we believe that Jesus of Nazareth is the only begotten Son of God and that He came into this world and went to the cross of Calvary and died for our sins and rose again in order to justify us and to give us life anew and prepare us for heaven-if you really believe that, there is only one inevitable deduction, namely that He is entitled to the whole of our lives, without any limit whatsoever.
The true man of science will know nature better by his finer organization; he will smell, taste, see, hear, feel, better than other men. His will be a deeper and finer experience. We do not learn by inference and deduction and the application of mathematics to philosophy, but by direct intercourse and sympathy. It is with science as with ethics,--we cannot know truth by contrivance and method; the Baconian is as false as any other, and with all the helps of machinery and the arts, the most scientific will still be the healthiest and friendliest man, and possess a more perfect Indian wisdom.
Intellect begins with the observation of nature, proceeds to memorize and classify the facts thus observed, and by logical deduction builds up that edifice of knowledge properly called science? But admittedly we also know by feeling, and we can combine the two faculties, and present knowledge in the guise of art.
You can't remember sex. You can remember the fact of it, and recall the setting, and even the details, but the sex of the sex cannot be remembered, the substantive truth of it, it is by nature self-erasing, you can remember its anatomy and be left with a judgment as to the degree of your liking of it, but whatever it is as a splurge of being, as a loss, as a charge of the conviction of love stopping your heart like your execution, there is no memory of it in the brain, only the deduction that it happened and that time passed, leaving you with a silhouette that you want to fill in again.
To give a causal explanation of an event means to deduce a statement which describes it, using as premises of the deduction one or more universal laws, together with certain singular statements, the initial conditions ... We have thus two different kinds of statement, both of which are necessary ingredients of a complete causal explanation.
The foundations of population genetics were laid chiefly by mathematical deduction from basic premises contained in the works of Mendel and Morgan and their followers. Haldane, Wright, and Fisher are the pioneers of population genetics whose main research equipment was paper and ink rather than microscopes, experimental fields, Drosophila bottles, or mouse cages. Theirs is theoretical biology at its best, and it has provided a guiding light for rigorous quantitative experimentation and observation.
One might ask the question: Is the mortgage interest deduction doing a better job, a worse job, if it's supposed to promote homeownership and savings? Because home ownership is the biggest form of savings in this country. Different people will look at that data and draw different conclusions, but that's just an example of the kind of thing you can pull out of USAFacts and develop a point of view about.
From this, one can make a deduction which is quite certainly the ultimate truth of jigsaw puzzles: despite appearances, puzzling is not a solitary game: every move the puzzler makes, the puzzlemaker has made before; every piece the puzzler picks up, and picks up again, and studies and strokes, every combination he tries, and tries a second time, every blunder and every insight, each hope and each discouragement have all been designed, calculated, and decided by the other.
Science as we now understand the word is of later birth. If its germinal origin may be traced to the early period when Observation, Induction, and Deduction were first employed, its birth must be referred to that comparatively recent period when the mind, rejecting the primitive tendency to seek in supernatural agencies for an explanation of all external phenomena, endeavoured, by a systematic investigation of the phenomena themselves to discover their invariable order and connection.
I'm not a detective from Baker Street or an old lady who solves crimes while she's knitting in an easy chair. I'm just a book girl. So I can't make a deduction, only take a flight of fancy--er, forget I said that. I meant, I can only take a guess.
If you ask any economist, they'll tell you all the mortgage interest deduction does is raise the price of the house. So a couple is out looking at the house, they say, "Oh, we love this house, but we couldn't make the monthly payment." And the realtor says, "Yeah, but you're going to get a tax break." So people pay more than they would otherwise. You take a loss even though you're making a gain.
When it happeneth that a man signifieth unto us two contradictory opinions whereof the one is clearly and directly signified, andthe other either drawn from that by consequence, or not known to be contradictory to it; then (when he is not present to explicate himself better) we are to take the former of his opinions; for that is clearly signified to be his, and directly, whereas the other might proceed from error in the deduction, or ignorance of the repugnancy.
Mortgage is one of the most popular deductions. It costs the Treasury about $103 billion a year. Now that's money we could use to treat wounded veterans or reduce the deficit or fill the border. Instead, we give it a subsidy to homeowners, and it goes mainly to the richest homeowners in America, because only one third of Americans itemize their deductions. It doesn't work. Many countries have gotten rid of the mortgage interest deduction. Almost all of them have higher homeownership rates than we do.
All science is based on models, and every scientific model comprises three distinct stages: statement of well-defined hypotheses; deduction of all the consequences of these hypotheses, and nothing but these consequences; confrontation of these consequences with observed data.
As Stephen Jay Gould pointed out in Time, in no other Western country is the teaching of Evolution regarded as controversial. Throughout the world, one way or another, most Christian denominations have managed to reconcile belief in God with belief in the mechanisms of natural selection. A French or German or Scandinavian politician who called for students to entertain as a reasonable deduction from existing evidence the proposition that Earth is at most 10,000 years old would be bundled off to a mental hospital.
Wherever Mathematics is mixed up with anything, which is outside its field, you will find attempts to demonstrate these merely conventional propositions a priori, and it will be your task to find out the false deduction in each case.
President Obama's recommended reduction in the tax deduction for charitable giving reflects his fundamental belief that only the government can or should help the poor. He wants to keep the impoverished directly dependent on the government - and the Democratic Party - for their daily bread.
Thinking is seeing.... Every human science is based on deduction, which is a slow process of seeing by which we work up from the effect to the cause; or, in a wider sense, all poetry like every work of art proceeds from a swift vision of things.
Sometimes I implant thoughts, sometimes I extract thoughts, but I don't like to explain it too much. It's based on science, deduction, and reasoning - it's a bit like what 'Sherlock' does, except that's a dramatised version. I look at every clue around me.
You also get a deduction in America for taking a night school course, growing sugarcane, moving to a new city for a job, replanting a forest, insulating the attic, destroying old farm equipment, employing Native Americans, commuting to work by bicycle - but only if the bike is regularly used for a substantial portion of travel - or buying a plug-in hybrid sports car, or buying a recreational vehicle. I mean there are hundreds of them, and most of them are nuts.
There's a tradeoff. Yeah, I lose the deduction that I really like, but my tax rate is going to go down, and I don't have to fill out that form anymore. It's much simpler, rates are lower, and that tradeoff has worked in many countries. Many countries have just cleaned house of all those exemptions in order to provide lower rates, and people buy it.
These long chains of perfectly simple and easy reasonings by means of which geometers are accustomed to carry out their most difficult demonstrations had led me to fancy that everything that can fall under human knowledge forms a similar sequence; and that so long as we avoid accepting as true what is not so, and always preserve the right order of deduction of one thing from another, there can be nothing too remote to be reached in the end, or to well hidden to be discovered.
We also need the provisions in the tax bill that will permit working mothers to increase the deduction from income tax liability for costs incurred in providing care for their children while the mothers are working. In October the Commission on the Status of Women will report to me. This problem should have a high priority, and I think that whatever we leave undone this year we must move on this in January.
It is difficult to distinguish deduction from what in other circumstances is called problem-solving. And concept learning, inference, and reasoning by analogy are all instances of inductive reasoning. (Detectives typically induce, rather than deduce.) None of these things can be done separately from each other, or from anything else. They are pseudo-categories.
Model building is the art of selecting those aspects of a process that are relevant to the question being asked. As with any art, this selection is guided by taste, elegance, and metaphor; it is a matter of induction, rather than deduction. High science depends on this art.
For chemistry is no science form'd à priori; 'tis no production of the human mind, framed by reasoning and deduction: it took its rise from a number of experiments casually made, without any expectation of what follow'd; and was only reduced into an art or system, by collecting and comparing the effects of such unpremeditated experiments, and observing the uniform tendency thereof. So far, then, as a number of experimenters agree to establish any undoubted truth; so far they may be consider'd as constituting the theory of chemistry.
We all remember the BP oil disaster in the Gulf of Mexico, the worst oil spill in U.S. history. What is less well known is that BP is claiming a 9.9 billion tax deduction on the money they had to spend cleaning up their own mess and paying for damages they caused. That is absurd.
How do you think we have the home mortgage deduction? We have it because way back when it was determined that the American dream equaled home ownership. And everybody knows that the vast majority of the American people will never be able to write a check for a house. You have to finance it.
A detective novel should contain no long descriptive passages, no literary dallying with side-issues, no subtly worked-out character analyses, no 'atmospheric' preoccupations. Such matters have no vital place in a record of crime and deduction. They hold up the action and introduce issues irrelevant to the main purpose, which is to state a problem, analyze it, and bring it to a successful conclusion. To be sure, there must be a sufficient descriptiveness and character delineation to give the novel verisimilitude.
No matter how you slice it, limiting the SALT deduction forces New Jersey families to spend even more to subsidize Americans in less economically productive states, which take more than they ever give back to the federal government.
If, occasionally, historical evidence does not square with formulated laws, it should be remembered that a law is but a deduction from experience and experiment, and therefore laws must conform with historical facts, not facts with laws.
My first encounters with faith came about the time I was a Boy Scout, at about 14 or 15. I made the logical deduction that they operate the same way; I treated my faith like earning a merit badge, and everything about Christianity was about earning merit badges.
Paradox is the sharpest scalpel in the satchel of science. Nothing concentrates the mind as effectively, regardless of whether it pits two competing theories against each other, or theory against observation, or a compelling mathematical deduction against ordinary common sense.
I said that he was my superior in observation and deduction. If the art of the detective began and ended in reasoning from an armchair, my brother would be the greatest criminal agent that ever lived. But he has no ambition and no energy. He will not even go out of his way to verify his own solutions, and would rather be considered wrong than take the trouble to prove himself right.
Science, in its ultimate ideal, consists of a set of propositions arranged in a hierarchy, the lowest level of the hierarchy being concerned with particular facts, and the highest with some general law, governing everything in the universe. The various levels in the hierarchy have a two-fold logical connection, travelling one up, one down; the upward connection proceeds by induction, the downward by deduction.
When we think of entitlement programs, Social Security and Medicare immediately come to mind. But by any fair standard, the holy trinity of United States social policy should also include the mortgage-interest deduction - an enormous benefit that has also become politically untouchable.
I presume that few who have paid any attention to the history of the Mathematical Analysis, will doubt that it has been developed in a certain order, or that that order has been, to a great extent, necessary -- being determined, either by steps of logical deduction, or by the successive introduction of new ideas and conceptions, when the time for their evolution had arrived.
Any photograph has multiple meanings: indeed, to see something in the form of a photograph is to encounter a potential object of fascination. The ultimate wisdom of the photographic image is to say: “There is the surface. Now think – or rather feel, intuit – what is beyond it, what the reality must be like if it looks this way.’ Photographs, which cannot themselves explain anything, are inexhaustible invitations to deduction, speculation, and fantasy
Why should ANYTHING go right; even observation and deduction? Why should not good logic be as misleading as bad logic? They are both movements in the brain of a bewildered ape?
In philosophy, when we make use of false principles, we depart the farther from the knowledge of truth and wisdom exactly in proportion to the care with which we cultivate them, and apply ourselves to the deduction of diverse consequences from them, thinking that we are philosophizing well, while we are only departing the farther from the truth; from which it must be inferred that they who have learned the least of all that has been hitherto distinguished by the name of philosophy are the most fitted for the apprehension of truth.
When we find that God's ways always coincide with our own ways, it's time to question who we're really worshipping, God or ourselves. The latter moves the nature of godliness from the King to our servant to a slave, a deduction into the realm of selfhood and then the lower, slavehood. It's a spiritual mathematics in that men who need God in his godhood are humble yet strong and spiritually ambitious while men who need a slave in their selfhood are ultimately paralyzed and will remain paralyzed.
In the 'Nude Descending a Staircase,' I wanted to create a static image of movement: movement is an abstraction, a deduction articulated within the painting, without our knowing if a real person is or isn't descending an equally real staircase.
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