But restraint is the only one sort of control, and absence of restraint isn't freedom. It's not control that's lacking when one feels 'free', but the objectionable control of force.

Death does not trouble me. I have no fear of supernatural punishments, of course, nor could I enjoy an eternal life in which there would be nothing left for me to do, the task of living having been accomplished.

Behavior is determined by its consequences.

A piece of music is an experience to be taken by itself.

A child who has been severely punished for sex play is not necessarily less inclined to continue; and a man who has been imprisoned for violent assault is not necessarily less inclined toward violence.

A self is a repertoire of behavior appropriate to a given set of contingencies.

The extent to which human aggression exemplifies innate tendencies is not clear.