Edwin H. Land (1909-1991) was an American scientist and inventor best known for inventing the Polaroid instant camera. Land was also a major pioneer of espionage photography and helped design the optics on the U-2 spy plane. He held 535 patents, was a recipient of the Presidential Medal of Freedom, and became a major influence on Apple’s Steve Jobs. The following quote seems to sum the both of them up nicely.
Driving while tired creates the most likely conditions for a road accident, especially when drivers are on the road between 2am and 5am or received fewer than five hours sleep the night before driving.