"I've often thought that the best thing to do with a human being is to put him in a box and feed him through a slot."

"I think I am a man without a country, except that I have a country, and it's full of people who are as crazy as I am."

"Mankind has been making a mess of things for a long time. It's time we started cleaning it up."

"We are all prisoners of our own minds."

"I was never a big fan of the '60s. I was always a little bit ahead of them."