The central theme of Feynman’s work as a scientist was to explore a new way of thinking and working with quantum mechanics. The book succeeds in explaining without any mathematical jargon how Feynman thought and worked. This is possible because Feynman visualized the world with pictures rather than with equations. Other physicists in the past and present describe the laws of nature with equations and then solve the equations to find out what happens. Feynman skipped the equations and wrote down the solutions directly, using his pictures as a guide. Skipping the equations was his greatest contribution to science. By skipping the equations, he created the language that a majority of modern physicists speak. Incidentally, he created a language that ordinary people without mathematical training can understand. To use the language to do quantitative calculations requires training, but untrained people can use it to describe qualitatively how nature behaves.

Freeman Dyson, comentando en The New York Review of Books un reciente libro sobre Feynman.


Esta forma que tenía Feynman de ver la realidad, que trasluce claramente en sus extraordinarias clases y libros de texto, me ha hecho pensar en lo que he puesto hace un rato sobre las erratas y la ortografía. No sé si Feynman cometía muchas faltas o ponía bien las comas, pero de lo que no me cabe ninguna duda es de que poseía una capacidad absolutamente excepcional para describir el mundo en que vivimos.