One that desires to excel should endeavor in those things that are in themselves most excellent. Epictetus
Silence is worse; all truths that are kept silent become poisonous. Friedrich Nietzsche
There two things that are infinite, human stupidity and the universe, I don't know about the universe. Albert Einstein
A man with trousers that are too short should wear long suspenders. Jamaican Proverb
Do not use words that are too big for your mouth. Persian Proverb
Ropes that are too long become snakes. Corsican Proverb