"Most mathematicians prove what they can, von Neumann proves what he wants." Once in a discussion about the rapid growth of mathematics in modern times, von Neumann was heard to remark that whereas thirty years ago a mathematician could grasp all of mathematics, that is impossible today. Someone asked him: "What percentage of all mathematics might a person aspire to understand today?" Von Neumann went into one of his five-second thinking trances, and said: "About 28 percent."
I remember that in 1927, when he came to Lwów (in Poland) to attend a — John von Neumann
"I remember that in 1927, when he came to Lwów (in Poland) to attend a congress of mathematicians, his work in foundations of mathematics and set theory was already famous. This was already mentioned to us, a group of students, as an example of the work of a youthful genius."

John von Neumann was a Hungarian and American mathematician, physicist, computer scientist and engineer. Von Neumann had perhaps the widest coverage of any mathematician of his time, integrating pure and applied sciences and making major contributions to many fields, including mathematics, physics, economics, computing, and statistics. He was a pioneer in building the mathematical framework of qua
John von Neumann was a Hungarian and American mathematician, physicist, computer scientist and engineer. Von Neumann had perhaps the widest coverage of any mathematician of his time, integrating pure and applied sciences and making major contributions to many fields, including mathematics, physics, economics, computing, and statistics. He was a pioneer in building the mathematical framework of qua
View all quotes by John von NeumannMore by John von Neumann
View all →"The greatest polymath of the 20th century."
"The smartest man in the world."
"He is really a professional, isn’t he!"
"Our country’s greatest Jancsi."
"The accuracy of his logic was, perhaps, the most decisive character of his mind. One had the impression of a perfect instrument whose gears were machined to mesh accurately to a thousandth of an inch. "If one listens to von Neumann, one understands how the human mind should work," was the verdict of one of our perceptive colleagues... "If he analyzed a problem, it was not necessary to discuss it any further. It was clear what had to be done," said the present chairman of the U. S. Atomic Energy Commission."
More on Hard Work
View all →"Since the Chernobyl accident, we have worked all over the globe to raise nuclear safety performance. And since the September 2001 terrorist attacks, we have worked with even greater intensity on nuclear security. On both fronts, we have built an international network of legal norms and performance standards. But our most tangible impact has been on the ground. Hundreds of missions, in every part of the world, with international experts making sure nuclear activities are safe and secure. I am very proud of the 2,300 hard working men and women that make up the IAEA staff — the colleagues with whom I share this honour. Some of them are here with me today. We come from over 90 countries. We bring many different perspectives to our work. Our diversity is our strength. We are limited in our authority. We have a very modest budget. And we have no armies. But armed with the strength of our convictions, we will continue to speak truth to power. And we will continue to carry out our mandate with independence and objectivity."
"The office is designed for "work," not productivity. Work can be defined as "anything youd rather not be doing." Productivity is a different matter. Telecommuting substitutes two hours of productivity for ten hours of work."
"He found his best satisfaction not in pleasure but in toil. He could live with little food, little sleep - and very little dalliance. The one thing he could not dispense with was work, and work in prodigious quantities."
"The work of the eyes is done. Go now and do the heart-work on the images imprisoned within you."
"Open, ye heavens, your living doors; let in The great Creator from his work returnd Magnificent, his six days work, a world!"
"Work work, work, work, die. Youd think I was a protestant."