The fear of death is nothing other than the pretence of wisdom, for it is to think one knows what one does not know.

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  Are you not ashamed that you care for wealth, reputation and honour, but do not care for wisdom, truth and your own soul?

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  One should never return wrong for wrong, nor do evil to anyone, whatever evil one may have suffered.

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  It seems I am wiser than this man in this: although neither of us knows anything beautiful and good, he thinks he knows something when he does not, whereas I, as I do not know, do not think I know either.

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  Crito, we owe a cock to Asclepius. Pay it and do not neglect it.

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  There is only one good, knowledge, and one evil, ignorance.

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  I know that I know nothing.

All quotes