Opportunity is missed by most people because it is dressed in overalls and looks like work.

We don't know one millionth of one per cent about anything.

I know this world is ruled by Infinite Intelligence. It required Infinite Intelligence to create it and it requires Infinite Intelligence to keep it on its course ... It is mathematical in its precision.

Everything comes to him who hustles while he waits.

Not only will atomic power be released, but someday we will harness the rise and fall of the tides and imprison the rays of the sun.

There will one day spring from the brain of science a machine or force so fearful in its potentialities, so absolutely terrifying that even man, the fighter, who will dare torture and death in order to inflict torture and death, will be appalled, and so abandon war forever. What man's mind can create, man's character can control.

I am proud of the fact that I never invented weapons to kill.

There will one day spring from the brain of science a machine or force so fearful in its potentialities, so absolutely terrifying, that even man, the fighter ... will be appalled, and so abandon war forever. What man's mind can create, man's character can control.

I never did a day's work in my life-it was all fun.