I recognize that many physicists are smarter than I am-most of them theoretical physicists. A lot of smart people have gone into theoretical physics, therefore the field is extremely competitive. I console myself with the thought that although they may be smarter and may be deeper thinkers than I am, I have broader interests than they have.

..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.

I believe all complicated phenomena can be explained by simpler scientific principles.

Although physicians, as part of their training, are taught that the dosage of a drug that is prescribed for the patient must be very carefully determined and controlled, they seem to have difficulty in remembering that the same principle applies to the vitamins.

[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'.

It has been recognized that hydrogen bonds restrain protein molecules to their native configurations, and I believe that as the methods of structural chemistry are further applied to physiological problems it will be found that the significance of the hydrogen bond for physiology is greater than that of any other single structural feature.

[Instead of collecting stamps, he collected dictionaries and encyclopaedias:] Because you can learn more from them.