The foundation of every state is the education of its youth. -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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I do not know whether there are gods, but there ought to be. -Diogenes

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I am not an Athenian or a Greek, but a citizen of the world. -Diogenes

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

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Of what use is a philosopher who doesn't hurt anybody's feelings? -Diogenes

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The sun, too, shines into cesspools and is not polluted. -Diogenes

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It takes a wise man to discover a wise man. -Diogenes

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

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