A first principle not formally recognized by scientific methodologists: when you run into something interesting, drop everything else and study it.

A vast technology has been developed to prevent, reduce, or terminate exhausting labor and physical damage. It is now dedicated to the production of the most trivial conveniences and comfort.

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

The consequences of an act affect the probability of its occurring again.

I will be dead in a few months. But it hasn't given me the slightest anxiety or worry. I always knew I was going to die.

The strengthening of behavior which results from reinforcement is appropriately called 'conditioning'. In operant conditioning we 'strengthen' an operant in the sense of making a response more probable or, in actual fact, more frequent.

Society attacks early, when the individual is helpless.