Nations keep agreements, keep their treaties so long as they continue to do them good.

[Professor Pauling] confesses that he had harboured the feeling that sooner or later he would be the one to get the DNA structure; and although he was pleased with the double-helix, he 'rather wished the idea had been his'.

I think every person should be able to enjoy life. Try to decide what you most enjoy doing, and then look around to see if there is a job for which you could prepare yourself that would enable you to continue having this sort of joy.

Life ... is a relationship between molecules.

There is no area of the world that should not be investigated by scientists. There will always remain some questions that have not been answered. In general, these are the questions that have not yet been posed.

The best way to have a good idea is to have a lot of ideas.

..The truly fraudulent claims must be discarded. But novel methods of therapy should not be rejected because they are novel, or because they run counter to some generally accepted belief ("which may just be biased"), or because we do not understand the mechanism of the proposed treatment, or because it has come from an unconventional source.