Everything that thou reprovest in another, thou must most carefully avoid in thyself.
[Lat., Omnia quae vindicaris in altero, tibi ipsi vehementer fugienda sunt.]
When trying a case [the famous judge] L. Cassius never failed to inquire "Who gained by it?" Man's character is such that no one undertakes crimes without hope of gain.
Let us not listen to those who think we ought to be angry with our enemies, and who believe this to be great and manly. Nothing is so praiseworthy, nothing so clearly shows a great and noble soul, as clemency and readiness to forgive.