"Anyone who has never made a mistake has never tried anything new."
"Great spirits have often encountered violent opposition from weak minds."
"Everything should be made as simple as possible, but not simpler."
"Common sense is the collection of prejudices acquired by age eighteen."
"Science is a wonderful thing if one does not have to earn one's living at it."
"The secret to creativity is knowing how to hide your sources."
"The only thing that interferes with my learning is my education."
"God does not care about our mathematical difficulties. He integrates empirically."
"The whole of science is nothing more than a refinement of everyday thinking."
"Technological progress is like an axe in the hands of a pathological criminal."