He who injured you was either stronger or weaker. If weaker, spare him; if stronger, spare yourself.
He that flings dirt at another dirtieth himself the most.
It is human nature to hate those whom you have injured.
If the other person injures you, you may forget the injury; but if you injure him you will always remember.
It takes your enemy and your friend, working together to hurt you to the heart; the one to slander you and the other to get the news to you.
No man ever did a designed injury to another, but at the same time he did a greater to himself.
Injuries put us on our guard.
Abuse a man unjustly and you will make friends for him.
The natural principle of war is to do the most harm to our enemy with the least harm to ourselves; and this of course is to be effected by strategem.
An individual, thinking himself injured, makes more noise than state.