A wise man does not chatter with one whose mind is sick.

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Applicants for wisdom do what I have done: inquire within.

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If someone speaks badly of you, do not defend yourself against the accusations, but reply; you obviously don’t know about my other vices otherwise you would have mentioned these as well.

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Knowledge which is divorced from justice may be called cunning rather than wisdom.

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Wisdom is not attained by years, but by ability.

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No man is wise enough by himself.

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Of all the things which wisdom provides to make us entirely happy, much the greatest is the possession of friendship.

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Every man, however wise, needs the advice of some sagacious friend in the affairs of life.

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When misfortune comes, The wisest even lose their mother wit

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I decided that it was not wisdom that enabled poets to write their poetry, but a kind of instinct or inspiration, such as you find in seers and prophets who deliver all their sublime messages without knowing in the least what they mean.

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It takes a wise man to recognize a wise man.

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He who knows others is wise; he who knows himself is enlightened.

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