"I've found out why people laugh. They laugh because it hurts so much... because it's the only thing that'll make it stop hurting" ... "But that's not all people laugh at." "Isn't it? Perhaps I don't grok all its fullness yet. But find me something that really makes you laugh sweetheart... a joke, or anything else- but something that gave you a a real belly laugh, not a smile. Then we'll see if there isn't a wrongness wasn't there." He thought. "I grok when apes learn to laugh, they'll be people."
Robert A. HeinleinMorals - all correct moral laws - derive from the instinct to survive. Moral behavior is survival behavior above the individual level.
Robert A. HeinleinDeath is the lot of us all, and the only way that the human race has ever conquered death is by treating it with contempt. By living every golden minute as if one had all Eternity.
Robert A. HeinleinThe brown monkey's instinct to kill is correct; such men are dangerous to all monkey customs.
Robert A. Heinlein