"What is wisdom? Always desiring the same things, and always refusing the same things."
Lucius Annaeus Seneca
(4 B.C.-A.D. 65) Roman Stoic philosopher, statesman, dramatist, "Seneca the Younger"
Epistulae Morales ad Lucilium (Moral Letters to Lucilius), Letter XX: On practicing what you preach, line 5