The energy available for each individual man is his income, and the philosophy which can teach him to be content with penury should be capable of teaching him also the uses of wealth.

With all our mastery over the powers of Nature we have adhered to the view that the struggle for existence is a permanent and necessary condition of life.

Chemistry has been termed by the physicist as the messy part of physics, but that is no reason why the physicists should be permitted to make a mess of chemistry when they invade it.

Nature is in austere mood, even terrifying, withal majestically beautiful.

There has been no discovery like it in the history of man. It puts into man's hands the key to using the fundamental energy of the universe.

The fact remains that, if the supply of energy failed, modern civilization would come to an end as abruptly as does the music of an organ deprived of wind.

[The human control of atomic energy could] virtually provide anyone who wanted it with a private sun of his own.