Wolfgang Ernst Pauli (25 April 1900 - 15 December 1958) was an Austrian theoretical physicist and one of the pioneers of quantum physics. Pauli was instrumental in the development of the modern theory of quantum mechanics. In particular, he formulated the exclusion principle and the theory of nonrelativistic spin. In 1945 he received the Nobel Prize in Physics. The svg-file based on photo from wikicommon. Author is Bettina Katzenstein. For more information: http://en.wikipedia.org/wiki/Wolfgang_Pauli