"Todd says that he told Bragg that the amide group was planar, but apparently Bragg
did not understand what he said. I was fortunate in having a good understanding of
two fields, structural chemistry and x-ray diffraction. My recommendation to young
scientists is that they get a thorough knowledge of one field, and also some knowledge
of other fields of science." Linus Pauling. "How My Interest in Proteins Developed." January 12, 1993.