John Von Neumann Quotes

“There was a seminar for advanced students in Zürich that I was teaching and von Neumann was in the class. I came to a certain theorem, and I said it is not proved and it may be difficult. Von Neumann didn’t say anything but after five minutes he raised his hand. When I called on him he went to the blackboard and proceeded to write down the proof. After that I was afraid of von Neumann.”
― George Pólya

“The spectacular thing about Johnny [von Neumann] was not his power as a mathematician, which was great, or his insight and his clarity, but his rapidity; he was very, very fast. And like the modern computer, which no longer bothers to retrieve the logarithm of 11 from its memory (but, instead, computes the logarithm of 11 each time it is needed), Johnny didn't bother to remember things. He computed them. You asked him a question, and if he didn't know the answer, he thought for three seconds and would produce and answer.”
― Paul R. Halmos

“Running overtime is the one unforgivable error a lecturer can make. After fifty minutes (one microcentury as von Neumann used to say) everybody's attention will turn elsewhere.”
― Gian-Carlo Rota, Indiscrete Thoughts

“John von Neumann draws attention to what seemed to him a contrast. He remarked that for simple mechanisms, it is often easier to describe how they work than what they do, while for more complicated mechanisms, it is usually the other way around.”
― Edsger W. Dijkstra

“It was the great Hungarian-born polymath John von Neumann who first recognized that social behavior could be analyzed as games.”
― Sylvia Nasar, A Beautiful Mind

“Spring of 1955 found Johnny and Klári settled into a small but comfortable house in Georgetown in Washington, D.C., Johnny having made the journey from postdoctoral immigrant to a presidential appointment in just twenty-five years. The interlude in Washington promised to lead to even more productive years ahead. “I want to become independent of the regulated academic life,” von Neumann had written to Klári from Los Alamos in 1943—a goal that was finally within reach. It was not to be.”
― George Dyson, Turing's Cathedral: The Origins of the Digital Universe