Scientists were rated as great heretics by the church, but they were truly religious men because of their faith in the orderliness of the universe.

The truth of a theory can never be proven, for one never knows if future experience will contradict its conclusions.

I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.

The special theory of relativity owes its origins to Maxwell's equations of the electromagnetic field.

Time is what the clock says.

I am doing just fine, considering that I have triumphantly survived Nazism and two wives.

It is strange to be known so universally and yet to be so lonely.