“Seems to be a deep instinct in human beings for making everything compulsory that isn't forbidden.”

“I don't see why human people make such a heavy trip out of sex. It isn't anything complex, it is simply the best thing in life, even better than food.”

“Must be yearning deep in human heart to stop other people from doing as they please.”

“The instinct to survive is human nature itself, and every aspect of our personalities derives from it. Anything that conflicts with the survival instinct acts sooner or later to eliminate the individual and thereby fails to show up in future generations. . . . A scientifically verifiable theory of morals must be rooted in the individual's instinct to survive--and nowhere else!--and must correctly describe the hierarchy of survival, note the motivations at each level, and resolve all conflicts.We have such a theory now; we can solve any moral problem, on any level. Self-interest, love of family, duty to country, responsibility toward the human race . . . .The basis of all morality is duty, a concept with the same relation to group that self-interest has to individual.”

“Death isn't funny." "Then why are there so many jokes about death? Jill, with us — us humans — death is so sad that we must laugh at it.”

“The capacity of humans to believe in what seems to me highly improbable- from table tapping to the superiority of their children- has never been plumbed.”

“Like every living thing its prime characteristic is a blind, unreasoned instinct to survive.”