God is clever, but not dishonest.
I think that only daring speculation can lead us further and not accumulation of facts.
Every one who is seriously involved in the pursuit of science becomes convinced that a spirit is manifest in the laws of the Universe-a spirit vastly superior to that of man, and one in the face of which we with our modest powers must feel humble.
I have always loved solitude, a trait which tends to increase with age.
It is easier to denature plutonium than to denature the evil spirit of man.
Each possession I own is but a stone around my neck.