We must beware of any attempt to make hatred in any form the basis of action. Most emphatically each of us needs to stand up for his own rights; all men and all groups of men are bound to retain their self-respect, and, demanding this same respect from others, to see that they are not injured and that they have secured to them the fullest liberty of thought and action. But to feed fat a grudge against others, while it may or may not harm them, is sure in the long run to do infinitely greater harm to the man himself.

Autore: Theodore Roosevelt