When I am working on a problem, I never think about beauty but when I have finished, if the solution is not beautiful, I know it is wrong.

The opposite of nature is impossible.

Windmills installed around the world converting their direct current into alternating current and feeding the electric energy into the world network can harvest the planet Earth's prime daily energy income source-the wind--and adequately supply all the world's energy needs

As long as one human being is hungry, the entire human race is hungry.

We as economic society are going to have to pay our whole population to go to school and pay it to stay at school.

All of humanity is in peril of extinction if each one of us does not dare, now and henceforth, always to tell only the truth, and all the truth, and to do so promptly - right now.

By and large, I seem to have made more mistakes than any others of whom I know, but have learned thereby to make ever swifter acknowledgment of the errors and thereafter immediately set about to deal more effectively with the truths disclosed by the acknowledgment of erroneous assumptions.