The economy is a thoughtless weather system.

The reason we write fiction is because it's so much easier to exist spending part of each day in an imaginary world.

I think that scientific persons of the future will scoff at scientific persons of the present. They will scoff because scientific persons of the present thought so many important things were superstitious.

If I were a physics teacher or a science teacher, it'd be on my mind all the time as how the hell we really got this way. It's a perfectly natural human thought and, okay, if you go into the science class you can't think this. Well, alright, as soon as you leave you can start thinking about it again without giving aid and comfort to the lunatic fringe of the Christian religion.

Laughing is good exercise. It's like jogging on the inside.

His response was to fight it with the only weapons at hand—passive resistance and open displays of contempt.

It seems to me that the most universal revolutionary wish now or ever is a wish for heaven, a wish by a human being to be honored by angels for something other than beauty or usefulness.