A failure is not always a mistake, it may simply be the best one can do under the circumstances. The real mistake is to stop trying.

I did not direct my life. I didn't design it. I never made decisions. Things always came up and made them for me. That's what life is.

The way positive reinforcement is carried out is more important than the amount.

Society attacks early, when the individual is helpless.

The real problem is not whether machines think but whether men do.