1. No one asks how to motivate a baby. A baby naturally explores everything it can get at, unless restraining forces have already been at work. And this tendency doesn't die out, it's wiped out.
Walden Two
2. Once in a while a new government initiates a program to put power to better use, but its success or failure never really proves anything. In science, experiments are designed, checked, altered, repeated-- but not in politics... We have no real cumulative knowledge. History tells us nothing. That's the tragedy of a political reformer.
Walden Two
3. The consequences of an act affect the probability of its occurring again.
4. The real question is not whether machines think but whether men do. The mystery which surrounds a thinking machine already surrounds a thinking man.
Contingencies Of Reinforcement: A Theoretical Analysis