With the dead there is no rivalry.

Hoping for new friendship from old enemies is / Like expecting to find a rose in a furnace.

You shall judge of a man by his foes as well as by his friends.

Resentment kills a fool, and envy slays the simple.

I shall embrace my rival—until I suffocate him.

It is very foolish to attack one’s enemy openly if one can injure him in secret.

He laughs best who laughs last.

We die of comfort and by conflict live.

It would seem that in history it’s never a tooth for a tooth, but a thousand, a hundred thousand for one.

Today’s friend may be tomorrow’s foe.

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

Revenge may be wicked, but it’s natural.

Quarrels would not last long if the fault was only on one side.