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Stubborn and ardent clinging to one's opinion is the best proof of stupidity.

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There were many terrible things in my life and most of them never happened.

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A wise man sees as much as he ought not as much as he can.

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I listen with attention to the judgment of all men;but so far as I can remember,I have followed none but my own.

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We can be knowledgable with other men's knowledge but we cannot be wise with other men's wisdom.

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It is a disaster that wisdom forbids you to be satisfied with yourself and always sends you away dissatisfied and fearful, whereas stubbornness and fo...more

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Learned we may be with another man's learning: we can only be wise with wisdom of our own.

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Demetrius the grammarian finding in the temple of Delphos a knot of philosophers set chatting together, said to them, “Either I am much deceived,or by...more