Science makes God unnecessary.

I have noticed even people who claim everything is predestined, and that we can do nothing to change it, look before they cross the road.

I'm not afraid of death, but I'm in no hurry to die. I have so much I want to do first.

Children in backseats cause accidents. Accidents in backseats cause children.

It is tribute to how far we have come in theoretical physics that it now takes enormous machines and a great deal of money to perform experiments whose results we can not predict.

I'm really easy to get along with once you see it my way.

I think the human race has no future if it doesn't go into space.