Who is the best scientist of them all?

Is theoretical physicist Ed Witten more influential in his field than the biologist Solomon Snyder is among life scientists? And how do their records of scholarly impact measure up against those of past greats such as Karl Marx among historians and economists, or Sigmund Freud among psychologists? Performance metrics based on values such as ... (more)

http://www.nature.com/news/who-is-the-best-scientist-of-them-all-1.14108