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 pure air and dazzling snow belong to things beyond the reach of all personal feeling, almost beyond the reach of life.

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.

In so far as such developments utilise the natural energy running to waste, as in water power, they may be accounted as pure gain. But in so far as they consume the fuel resources of the globe they are very different. The one is like spending the interest on a legacy, and the other is like spending the legacy itself. ... [There is] a still hardly recognised coming energy problem.

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 history of man is dominated by, and reflects, the amount of available energy

But what sin is to the moralist and crime to the jurist so to the scientific man is ignorance.