Creative genius and crime express themselves early in men but both are turned off almost like a tap if a man gets married and has children, a study says. Satoshi Kanazawa, a psychologist at the University of Canterbury in New Zealand, compiled a database of the biographies of 280 great scientists, noting their age at the time when they made their greatest work. The data remarkably concur with the brutal observation made by Albert Einstein, who wrote in 1942: "A person who has not made his great contribution to science before the age of 30 will never do so." "Scientific...