As history shows us, when colonization is voluntary, people will self-select better than any testing system. It’s like those foolish attempts to control immigration to American based on the traits that were deemed desirable, when in fact the only trait that defines Americans historically is “descended from somebody willing to give up everything to live there.” Willingness is the single most important test.

Welcome to the human race. Nobody controls his own life, Ender.

And enough for me that when my hand touched your shoulder, you leaned on me; and when you felt me slip away, you called my name.

You want to beat Peter?" she asked "No," he answered "Beat the buggers. Then come home and see who notices Peter Wiggen anymore. Look him in the eye when all the world loves and reveres you. That'll be defeat in his eyes, Ender, thats how you win" "You don't understand" he said "Yes i do" "No you don't. I don't want to beat Peter" "Then what do you want?" "I want him to love me

Changing the world is good for those who want their names in books. But being happy, that is for those who write their names in the lives of others, and hold the hearts of others as the treasure most dear.

Human: That's stupid. Isn't there grass on both sides?

It is possible to have words come to your mind, and still refrain from speaking them aloud.