"Oh, anything with a probability of less than 20%."

"The world is full of magic things, patiently waiting for our senses to grow sharper."

"The atomic bomb is a testament to the power of human intellect, but it is also a warning about the dangers of human folly."

"Before the war, I was doing pure physics. Now I am doing applied physics. But it is still physics."

"I have been very lucky in my life. I have always been able to do what I wanted to do, and I have always been able to do it with people I liked."