The wisest and noblest teacher is nature itself.

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I threw my cup away when I saw a child drinking from his hands at the trough. -Diogenes

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I know nothing, except the fact of my ignorance. -Diogenes

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He has the most who is most content with the least. -Diogenes

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As a matter of self-preservation, a man needs good friends or ardent enemies, for the former instruct him and the latter take him to task. -Diogenes

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Man is the most intelligent of the animals - and the most silly. -Diogenes

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A friend is one soul abiding in two bodies. -Diogenes

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Most men are within a finger's breadth of being mad. -Diogenes

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Only the wisest and stupidest of men never change. -Confucius

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There is only a finger's difference between a wise man and a fool. -Diogenes

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