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

Put national causes first and personal grudges last.

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

Today’s friend may be tomorrow’s foe.

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

One of the most time-consuming things is to have an enemy.

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

The hatred of relatives is the bitterest.

An injury is much sooner forgotten than an insult.

The envious die not once, but as often as the envied win applause.

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

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

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