Education is what survives when what has been learnt is forgotten.

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

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

"If you're old, don't try to change yourself, change your environment."

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