I believe in an immortal soul. Science has proved that nothing disintegrates into nothingness. Life and soul, therefore, cannot disintegrate into nothingness, and so are immortal.

Basic research is what I am doing when I don't know what I am doing.

What we will have attained when Neil Armstrong steps down upon the moon is a completely new step in the evolution of man.

I only hope that we shall not wait to adopt the program until after our astronomers have reported a new and unsuspected asteroid moving across their fields of vision with menacing speed. At that point it will be too late!

Man belongs wherever he wants to go - and he'll do plenty well when he gets there.

Get me a broom. I'll sweep my own office.

Don't tell me that man doesn't belong out there. Man belongs wherever he wants to go - and he'll do plenty well when he gets there.