Most people are right-handed. The go through life using their right hands for most actions-writing, eating, picking up things and putting them down. But to be a left-handed person does not mean failure in life or the business world. For that matter, many of the world’s great men have been left-handed: Charlemagne, Michaelangelo, Raphael, Leonardo da Vinci, Alexander the Great. But in summarizing the evidence concerning handedness, it seems safe to say that we know more about “cure” than cause. It is fairly certain that handedness is related neurologically to the brain; hence the easy phrase, “cerebral dominance”. But no one knows exactly how cerebral dominance works or even, certainly, whether it exists. So until further research is done, perhaps we should at this time respect if not agree with the sad conclusions of one authority, who says that “the problem is wholly beyond our reach, and the ingenious theories only demonstrate man’s fondness for speculation.”