"My year in Munich was very productive. I not only got a very good grasp of quantum
mechanics -- by attending Sommerfeld's lectures on the subject, as well as other lectures
by him and other people in the University, and also by my own study of published papers
-- but in addition I was able to begin attacking many problems dealing with the nature
of the chemical bond by applying quantum mechanics to these problems."
Linus Pauling. The Chemical Bond: Structure of Dynamics, Ahmed Zewail, ed. 1992.
