It is lawful to be taught by an enemy. Fas est ab hoste doceri.
Calumny ever pursues the great, even as the winds hurl themselves on high places.
Little things please little minds.
Very slight violence will break that which has once been cracked.
Haste is productive of injury, and so is too much hesitation. He is the wisest man who does everything at the proper time.
If the art is concealed, it succeeds.