“There is a philosophy that says that if something is unobservable -- unobservable in principle -- it is not part of science. If there is no way to falsify or confirm a hypothesis, it belongs to the...”

“Why is there space rather than no space? Why is space three-dimensional? Why is space big? We have a lot of room to move around in. How come it's not tiny? We have no consensus about these things. ...”

“Space can vibrate, space can fluctuate, space can be quantum mechanical, but what the devil is it? And, you know, everybody has their own idea about what it is, but there's no coherent final consen...”

“Unforeseen surprises are the rule in science, not the exception. Remember: Stuff happens.”

“Life is fragile: it thrives only in a narrow range of temperatures between freezing and boiling. How lucky that our planet is just the right distance from the sun: a little farther, and the death o...”

“I'm not going to argue with people about the existence of God. I have not the vaguest idea of whether the universe was created by an intelligence.”

“We accept the love we think we deserve.”

“All Earthquakes and Disasters are warnings theres too much corruption in the world ”

“Its only when youre at the bottom of the ladder that you ascend.”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”