Wisdom does not show itself so much in precept as in life - in firmness of mind and a mastery of appetite. It teaches us to do as well as to talk; and to make our words and actions all of a color.

Seneca the Younger (4 BCE-65 CE), Lucius Annaeus Seneca the Younger usually known as Seneca, was a Roman Stoic philosopher, statesman, dramatist, and in one work, satirist from the Silver Age of Latin literature.