The punishment of criminals should serve a purpose. When a man is hanged he is useless.
— Voltaire

A judge who cannot punish, in the end associates themselves with the criminal.
— Johann Wolfgang von Goethe

When God punishes a land, he deprives it leaders of wisdom.
— Italian Proverbs

There is no person so severely punished, as those who subject themselves to the whip of their own remorse.
— Marcus Annaeus Seneca Seneca The Elder

Distrust everyone in whom the impulse to punish is powerful!
— Friedrich Nietzsche