We often give our enemies the means for our own destruction.

We die of comfort and by conflict live.

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

Rivalry is the whetstone of talent.

Quarreling must lead to disorder, and disorder exhaustion.

The hatred of relatives is the bitterest.

Enemies to me are the sauce piquant to my dish of life.

Today’s friend may be tomorrow’s foe.

For what do we live, but to make sport for our neighbors, and laugh at them in our turn?

Hate must make a man productive. Otherwise one might as well love.

Perish the universe, provided I have my revenge.

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

Revenge may be wicked, but it’s natural.