Those wars are unjust which are undertaken without provocation. For only a war waged for revenge or defense can be just. Cicero
It might be pardonable to refuse to defend some men, but to defend them negligently is nothing short of criminal. Cicero
Take from a man his reputation for probity, and the more shrewd and clever he is, the more hated and mistrusted he becomes. Cicero
The study and knowledge of the universe would somehow be lame and defective were no practical results to follow. Cicero