Virtue is a matter of deeds, not words.
ἀρετὴ τῶν ἔργων ἐστίν, οὐ τῶν λόγων.

Philosophers
Antisthenes
Greek philosopher (c. 446-366 BC), pupil of Socrates, traditional founder of Cynicism. He taught that virtue is a matter of deeds and alone suffices for happiness, laying the ascetic foundations Stoics would inherit.
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Antisthenes's Other Quotes
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