The Greek philosopher Antisthenes (ca. 450-360 B.C.) was a devoted student and follower of Socrates and is credited with founding the Cynic Sect, which exerted great influence on the course of popular philosophy throughout ...
Observe your enemies, for they first find out your faults.
Pay attention to your enemies for they are the first to discover your mistakes.
Serve your enemies for they first find out your faults
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