Whence the Force of F= ma?

Professor Frank Wilczek is considered one of the world's most eminent theoretical physicists. He is known, among other things, for the discovery of asymptotic freedom, the development of quantum chromodynamics, axions, and the discovery and exploitation of new forms of quantum statistics (anyons). When only 21 years old and a graduate student at Princeton University, he did the work cited in his Nobel Prize of 2004. He has also received many other prizes for his work in physics. He is currently the Herman Feshbach professor of physics at MIT.