A Quote by Louis Pasteur
Without theory, practice is but routine born of habit. Theory alone can bring forth and develop the spirit of invention. ... [Do not] share the opinion of those narrow minds who disdain everything in science which has not an immediate application. ... A theoretical discovery has but the merit of its existence: it awakens hope, and that is all. But let it be cultivated, let it grow, and you will see what it will become.
Related Quotes
Without theory, practice is but routine born of habit. Theory alone can bring forth and develop the spirit of inventions.
Theory without practice is of little value, whereas practice is the proof of theory.Theory is the knowledge, practice the ability.
[Donald] Trump and all the Republicans believe in the theory of trickle down economics which is a theory discredited even by the author himself David Stockton. The theory suggests that if we take care of the people at the top, if we cut taxes for the wealthy, if we make sure they are doing really well, then the investments that they make in the economy and the jobs that will create, will make everything grow and it will have a trickle down effect on the rest of us.
I believe without exception that theory follows practice. Whenever there is a conflict between theory and practice, theory is wrong. As far as I'm concerned, we make theories for what people have done.
Discrepancy between theory and practice, which in sound physical and mechanical science is a delusion, has a real existence in the minds of men; and that fallacy, through rejected by their judgments, continues to exert and influence over their acts.
As soon as science has emerged from its initial stages, theoretical advances are no longer achieved merely by a process of arrangement. Guided by empirical data, the investigator rather develops a system of thought which, in general, is built up logically from a small number of fundamental assumptions, the so-called axioms. We call such a system of thought a theory. The theory finds the justification for its existence in the fact that it correlates a large number of single observations, and it is just here that the 'truth' of the theory lies.
Economists can never be free of from difficulties unless they will distinguish between a theory and the application of a theory.
No theory ever benefited by the application of data, Amy. Data kills theories. A theory has no better time than when it's lying there naked, pure, unsullied by facts. Let's just keep it that way for a while." "So you don't really have a theory?" "Clueless." "You lying bag of fish heads." "I can fire you, you know. Even if Clay was the one that hired you, I'm not totally superfluous to this operation yet. I'm kind of in charge. I can fire you. Then how will you live?" "I'm not getting paid." "See, right there. Perfectly good concept ruined by the application of fact.
There is a distinction, but no opposition, between theory and practice. Each to a certain extent supposes the other. Theory is dependent on practice; practice must have preceded theory.
Those who are enamoured of practice without science are like a pilot who goes into a ship without rudder or compass and never has any certainty of where he is going. Practice should always be based upon a sound knowledge of theory.
We see many persons talking the most wonderfully fine things about charity and about equality and the rights of other people and all that, but it is only in theory. I was so fortunate as to find one who was able to carry theory into practice. He had the most wonderful faculty of carrying everything into practice which he thought was right.
It is a remarkable fact that the second law of thermodynamics has played in the history of science a fundamental role far beyond its original scope. Suffice it to mention Boltzmann's work on kinetic theory, Planck's discovery of quantum theory or Einstein's theory of spontaneous emission, which were all based on the second law of thermodynamics.
I have just finished my sketch of my species theory. If as I believe that my theory is true & if it be accepted even by one competent judge, it will be a considerable step in science. I therefore write this, in case of my sudden death, as my most solemn & last request, which I am sure you will consider the same as if legally entered in my will, that you will devote 400£ to its publication & further will yourself, or through Hensleigh [Wedgwood], take trouble in promoting it.
Such is professional jealousy; a scientist will never show any kindness for a theory which he did not start himself. There is no feeling of brotherhood among these people. Indeed, they always resent it when I call them brother. To show how far their ungenerosity can carry them, I will state that I offered to let Prof. H--y publish my great theory as his own discovery; I even begged him to do it; I even proposed to print it myself as his theory. Instead of thanking me, he said that if I tried to fasten that theory on him he would sue me for slander.
A man's mind may be likened to a garden, which may be intelligently cultivated or allowed to run wild; but whether cultivated or neglected, it must, and will, bring forth. If no useful seeds are put into it, then an abundance of useless weed seeds will fall therein, and will continue to produce their kind.
I had two passions when I was a child. First was to learn about Einstein's theory and help to complete his dream of a unified theory of everything. That's my day job. I work in something called string theory. I'm one of the founders of the subject. We hope to complete Einstein's dream of a theory of everything.
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