"Anybody could see that quantum mechanics must lead to the tetrahedral carbon atom, because we have it. But the equations were so complicated that I never could be sure that I could present the argumen…"

"To awaken an interest in chemistry in students we mustn't make the courses consist entirely of explanations, forgetting to mention what there is to be explained."

"I have always been a humanitarian, and I believe that we should all work to make the world a better place for everyone."

"I am an optimist. I believe that the human race will solve its problems."

"The only thing that stands between a man and what he wants from life is often merely the will to try it and the faith to believe that it is possible."