Albert Einstein -- US (German-born) physicist; discovered special relativity 1905 & general relativity 1915-1916; explained photoelectric effect & Brownian motion; Nobel Prize in Physics 1921
"Not everything that counts can be counted, and not everything that can be counted counts." (Sign hanging in Einstein's office at Princeton)
"Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction."
"I never think of the future. It comes soon enough."
"Anyone who has never made a mistake has never tried anything new."
"Everything should be made as simple as possible, but not simpler."
"Science is a wonderful thing if one does not have to earn one's living at it."
"Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."
"Insanity: doing the same thing over and over again and expecting different results."