Euripides

“The tongue is not in the control of the mind.”
“Stronger than lover's love is lover's hate.”
“Silence is true wisdom’s best reply.”
“I have learned that to be a friend is to be faithful.”
“No one is truly free; the slaves of fear and desire are many.”
“There is in the worst of fortune the best of chances for a happy change.”
“The best of seers is he who guesses well.”
“Talk sense to a fool and he calls you foolish.”
“Cleverness is not wisdom.”
“Leave no stone unturned.”