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

From hell’s heart I stab at thee; for hate’s sake I spit my last breath at thee.

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

Quarreling must lead to disorder, and disorder exhaustion.

Opposition may become sweet to a man when he has christened it persecution.

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

Resentment kills a fool, and envy slays the simple.

Perish the universe, provided I have my revenge.

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

It is permitted to learn even from an enemy.

Better a thousand enemies outside the house than one inside.

Envy and hatred are apt to blind the eyes and render them unable to behold things as they are.

Enemies are so stimulating.