“Odiaría morir dos veces, sería tan aburrido!.”

“It was thought in the Middle Ages that people simply make many observations, and the observations themselves suggest the laws. But it does not work that way. It takes much more imagination than that.So the next thing we have to talk about is where the new ideas come from. Actually, it does not make any difference, as long as they come.”

“There is no authority who decides what is a good idea.”

“To every man is given the key to the gates of heaven. The same key opens the gates of hell. And so it is with science.”

“If u think u can u mayif u think u can't u r right”

“In physics the truth is rarely perfectly clear, and that is certainly universally the case in human affairs. Hence, what is not surrounded by uncertainty cannot be the truth.”

“There are 10^11 stars in the galaxy. That used to be a huge number. But it's only a hundred billion. It's less than the national deficit! We used to call them astronomical numbers. Now we should call them economical numbers.”