To outwit an enemy is not only just and glorious but profitable and sweet.

Revenge may be wicked, but it’s natural.

Don’t hit a man at all if you can avoid it, but if you have to hit him, knock him out.

No one wins a quarrel by quarreling.

Rivalry adds so much to the charms of one’s conquests.

We die of comfort and by conflict live.

Better a thousand enemies outside the house than one inside.

What mighty contests rise from trivial things.

It is permitted to learn even from an enemy.

Quarreling must lead to disorder, and disorder exhaustion.

I tell you, there is such a thing as creative hate!

Today’s friend may be tomorrow’s foe.

He laughs best who laughs last.