“In the matter of physics, the first lessons should contain nothing but what is experimental and interesting to see. A pretty experiment is in itself often more valuable than twenty formulae extracted from our minds.”

“Either CS (coordinate system) could be used with equal justification. The two sentences: the sun is at rest and the earth moves, or the sun moves and the earth is at rest, would simply mean two different conventions concerning two different CS”

“Engineering is not only study of 45 subjects but it is moral studies of intellectual life. Make things as simple as possible..but not simpler.”

“Each makes this cosmos and its construction the pivot of his emotional life, in order to find in this way peace and security which he can not find in the narrow whirlpool of personal experience.”

“Games are the most elevated form of investigation.”

“The reward of commercial civilization is the ability to consume a never-ending array of products.There are limits beyond which commodities cannot be multiplied without preventing their consumers from affirming themselves through the exercise of their personal freedom.When market dependence reaches a certain threshold it deprives people of their power to live creatively and to act autonomously. And precisely because this new impotence is so deeply experienced, it is expressed with difficulty.”

“In the Fiji islands, it appears, cannibalism is now familiar. They eat thier own wives and children. We only devour widows' houses, and great merchants outwit and absorb the substance of small ones, and every man feeds on his neighbor's labor if he can. It is a milder form of cannibalism.”

“Personally I think that private property has a right to be defended. Our civilisation is built up on property, and can only be defended by private property.”