Human knowledge has been changing from the word go and people in certain respects behave more rationally than they did when they didn't have it. They spend less time doing rain dances and more time seeding clouds.

Anything that gives us new knowledge gives us an opportunity to be more rational.

Human knowledge has been changing from the word go and people in certain respects behave more rationally than they did when they didn't have it. They spend less time doing rain dances and more time seeding clouds.

Anything that gives us new knowledge gives us an opportunity to be more rational.

Human knowledge has been changing from the word 'go,' and people, in certain respects, behave more rationally than they did when they didn't have it. They spend less time doing rain dances and more time seeding clouds.

Among my European ancestors were piano builders, goldsmiths, and vintners but, to the best of my knowledge, no professionals of any kind.