"A scientist must be a man of faith, not in the sense of a believer in dogma, but in the sense of a man who believes in the possibility of discovering new truths."

"Insight must precede application."

"There are no contradictions in nature. There are only contradictions in the human mind."

"The scientific method is a never-ending process of refinement and correction."

"The total number of particles in the universe is so large that it is impossible to count them."