Julius Caesar - from Suetonius, Lives of the Caesars

Veni, vidi, vici.
[I came, I saw, I conquered]
Julius Caesar - De Bello Gallico
Men willingly believe what they wish.
Julius Caesar - (attributed)
I am going to Spain to fight an army without a general, and thence to the East to fight a general without an army.
Julius Caesar - from Plutarch, Lives
It is not these well-fed long-haired men that I fear, but the pale and the hungry-looking.

Et tu, Brute.
[You also, Brutus.]

- Julius Caesar - from Suetonius, Lives of the Caesars