Linus Pauling — "The greatest pleasure in life is doing what people say you cannot do."

"The only way to cope with a problem is to go right at it, and the only way to solve a problem is to keep on working at it until you've solved it."

"The only limit to our realization of tomorrow will be our doubts of today."

"A good scientist thinks logically and accurately when conditions call for logical and accurate thinking—but so does any other good worker when he has a sufficient number of well-founded facts to serve…"

"I believe that the human race has the ability to solve all of its problems, if we only work together."

"I am not afraid to be wrong, because I know that I can learn from my mistakes."