science and humans life

Science affects the average man and woman in two ways already. He or she benefits by its applications, driving a motor car or omnibus instead of a horse-drawn vehicle, being treated for disease by a doctor or surgeon rather than a priest or a witch and being killed with an automatic pistol or a shell in place of a dagger or battle-axe. It also affects his or her opinion. Almost everyone believes that the earth is round, and the heavens nearly empty, instead of solid, and we are beginning to believe in our animal ancestry and the possibility of vast improvements in human nature by biological methods.