Augustus De Morgan Quotes
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Common integration is only the memory of differentiation... The different artifices by which integration is effected, are changes, not from the known to the unknown, but from forms in which memory does not serve us to those in which it does.
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The sacred writings excepted, no Greek has been so much read and so variously translated as Euclid.
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Wrong hypotheses, rightly worked from, have produced more useful results than unguided observations.
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Common integration is only the memory of differentiation.
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The lowest steps of the ladder are as useful as the highest.
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Every science that has thriven has thriven upon its own symbols: logic, the only science which is admitted to have made no improvements in century after century, is the only one which has grown no symbols.
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Mathematicians care no more for logic than logicians for mathematics.
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I did not hear what you said, but I absolutely disagree with you.
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My opinion of mankind is founded upon the mournful fact that, so far as I can see, they find within themselves the means of believing in a thousand times as much as there is to believe in.
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All existing things upon this earth, which have knowledge of their own existence, possess, some in one degree and some in another, the power of thought, accompanied by perception, which is the awakening of thought by the effects of external objects upon the senses.
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It should seem that it is easier to square the circle than to get round a mathematician.
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The moving power of mathematical invention is not reasoning but imagination.