Fight in the Way of God against those who fight against you, but do not commit aggression.

No absolute is going to make the lion lie down with the lamb: unless the lamb is inside.

At worst, is not this an unjust world, full of nothing but beasts of prey, four-footed or two-footed?

If there is no evidence that sport lowers aggression, at the same time it should be said that there is also no evidence that sport is motivated by aggression.

Attack is the reaction. I never think I have hit hard unless it rebounds.

It is unfair to blame man too fiercely for being pugnacious; he learned the habit from Nature.

To knock a thing down, especially if it is cocked at an arrogant angle, is a deep delight to the blood.

The extent to which human aggression exemplifies innate tendencies is not clear.

The curse of modern times is the preponderance of male hormones in places where they can do long-term damage. Even if were not talking about wars between nations or assaults on nature, there's still that aggressiveness that keeps us apart from each other and the problems we need to be working on.