A Quote by Gottfried Leibniz
The knowledge which we have acquired ought not to resemble a great shop without order, and without an inventory; we ought to know what we possess, and be able to make it serve us in need.
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There are some chagrins of the heart which a friend ought to try to console without betraying a knowledge of their existence, as there are physical maladies which a physician ought to seek to heal without letting the sufferer know that he has discovered their extent.
Mirth is God's medicine. Everybody ought to bathe in it. Grim care, moroseness, anxiety,--all this rust of life, ought to be scoured off by the oil of mirth. It is better than emery. Every man ought to rub himself with it. A man without mirth is like a wagon without springs, in which one is caused disagreeably to jolt by every pebble over which it runs.
No reception without reaction, no impression without correlative expression, -this is the great maxim which the teacher ought never to forget.
A good author, and one who writes carefully, often discovers that the expression of which he has been in search without being able to discover it, and which he has at last found, is that which was the most simple, the most natural, and which seems as if it ought to have presented itself at once, without effort, to the mind.
Curiosity in children ... is but an appetite after knowledge and therefore ought to be encouraged in them, not only as a good sign, but as the great instrument nature has provided to remove that ignorance they were born with and which, without this busy inquisitiveness, will make them dull and useless creatures.
Mutual good humor is a dress we ought to appear in wherever we meet, and we should make no mention of what concerns ourselves, without it be of matters wherein our friends ought to rejoice.
To know how to put what knowledge in which place is wisdom (hikmah). Otherwise, knowledge without order and seeking it without discipline does lead to confusion and hence to injustice to one's self.
Nevertheless we have this curious spectacle: daily the trained parrot in the pulpit gravely delivers himself of these ironies, which he has acquired at second-hand and adopted without examination, to a trained congregation which accepts them without examination, and neither the speaker nor the hearer laughs at himself. It does seem as if we ought to be humble when we are at a bench-show, and not put on airs of intellectual superiority there.
We ought to be able to persuade on opposite sides of a question; as also we ought in the case of arguing by syllogism: not that we should practice both, for it is not right to persuade to what is bad; but in order that the bearing of the case may not escape us, and that when another makes an unfair use of these reasonings, we may be able to solve them.
To act on the belief that we possess the knowledge and the power which enable us to shape the processes of society entirely to our liking, knowledge which in fact we do not possess, is likely to make us do much harm.
An infinite God ought to be able to protect himself, without going in partnership with State Legislatures. Certainly he ought not so to act that laws become necessary to keep him from being laughed at. No one thinks of protecting Shakespeare from ridicule, by the threat of fine and imprisonment.
We develop all our sciences, archeology, cosmology, psychology, we tabulate and classify and cling to our sacred definitions, our divisions, without any attempt to synthesis, without the humility to see that these are only parts of a total knowledge. ... But somehow we ought to be able to keep the idea of the totality of experience and knowledge at the back of our minds even though the front's busy from morning til night with the life cycle of the liver fluke.
Without freedom of thought, there can be no such thing as wisdom; and no such thing as public liberty without freedom of speech; which is the right of every man as far as by it he does not hurt or control the right of another; and this is the only check it ought to suffer and the only bounds it ought to know.... Whoever would overthrow the liberty of a nation must begin by subduing the freedom of speech, a thing terrible to traitors.
Everyone without extraordinary research skills ought to be able to know what is happening inside the government, how it operates, where their tax dollars are going. Then they can make better decisions in the electoral process.
The awkwardness and embarrassment which all feel on beginning to write, when they themselves are the theme, ought to serve as a hint to author's that self is a subject they ought very rarely to descant upon.
The claim is also sometimes made that science is as arbitrary or irrational as all other claims to knowledge, or that reason itself is an illusion. As Ethan Allen said Those who invalidate reason ought seriously to consider whether they argue against reason with or without reason; if with reason, then they establish the principle that they are labouring to dethrone. If they argue without reason, which they must do, in order to be consistent with themselves, they are out of reach of rational conviction, nor do they deserve a rational argument.
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