Ere many generations pass - mankind will succeed in attaching their machinery to the very wheelwork of nature.

Ere many generations pass, our machinery will be driven by a power obtainable at any point of the universe. Throughout space there is energy. Is this energy static or kinetic? If static, our hopes are in vain; if kinetic - and this we know it is, for certain - then it is a mere question of time when men will succeed in attaching their machinery to the very wheelwork of nature.