The men who made the Industrial Revolution are usually pictured as hardfaced businessmen with no other motive than self-interest. That is certainly wrong. For one thing, many of them were inventors who had come into business that way.

Sex was invented as a biological instrument by (say) the green algae. But as an instrument in the ascent of man which is basic to his cultural evolution, it was invented by man himself.

The idea that the universe is running down comes from a simple observation about machines. Every machine consumes more energy than it renders.

Whether our work is art or science or the daily work of society, it is only the form in which we explore our experience which is different.

This is the essence of science: ask an impertinent question, and you are on your way to a pertinent answer.