Menander

Nothing is more useful than silence.
Menander - The Double Deceiver
Whom the gods love dies young.

He who labors diligently need never despair; for all things are accomplished by diligence and labor.
Menander - The Woman Possessed with a Divinity
Deus ex machina [A god from the machine]

The sword the body wounds, sharp words the mind.

Culture makes all men gentle.
Menander - Lady of Andros
Riches cover a multitude of woes.
Menander - Unidentified fragment
I call a fig a fig, a spade a spade.

The character of a man is known from his conversations.
Menander - Unidentified fragment
It is not white hair that engenders wisdom.

The school of hard knocks is an accelerated curriculum.
Menander - Monostikoi (Single Lines)
The man who runs may fight again.

Let bravery be thy choice, but not bravado.

- Menander