"The only true wisdom is in knowing you know nothing."

"I confess that I had harbored the feeling that sooner or later I would be the one to get the DNA structure; and although I was pleased with the double-helix, I 'rather wished the idea had been his'."

"I believe that the future of humanity depends on our ability to cooperate and to solve the problems that confront us."

"The greatest discoveries of science have always been made by those who were not afraid to challenge the existing paradigms."

"The most important thing in life is to be happy, and to make others happy."