None of us could be happy for long, doing nothing.

Ender nodded. It was a lie, of course, that it wouldn’t hurt a bit. But since adults always said it when it was going to hurt, he could count on that statement as an accurate prediction of the future. Sometimes lies were more dependable than the truth.

The tribe is whatever we believe it is. If we say the tribe is all the Little Ones in the forest, and all the trees, then that is what the tribe is. Even though some of the oldest trees here came from warriors of two different tribes, fallen in battle. We become one tribe because we say we're one tribe." Ender marveled at his mind, this small raman [member of another sentient species]. How few humans were able to grasp this idea, or let it extend beyond the narrow confines of their tribe, their family, their nation.

The wise are not wise because they make no mistakes. They are wise because they correct their mistakes as soon as they recognize them.

If a pig goes upon the threshing-floor, or a field, or a garden, and the owner of the meadow, or the field, or the garden smites it so that it die, he shall give it back to its owner; but if he does not give it back, he becomes a thief.

Your trust in rationality makes you irrational.

Oh, Val," said Father. "All you have to do is live your life, and everyone around you will be happier." "No greatness, then." "Val," said Mother, "goodness trumps greatness any day." "Not in the history books," said Valentine. "Then the wrong people are writing history, aren't they?" said Father.