What I cannot create, I do not understand.

“We are lucky to live in an age in which we are still making discoveries. ”

“Words can be meaningless. If they are used in such a way that no sharp conclusi…”

“Prof. Wheeler was called away last night so I took over his course in mechanics…”

“There are 10^11 stars in the galaxy. That used to be a huge number. But it's on…”