Quote of the day
How full of trifles everything is! It is only one's thoughts that fill a room with something more than furniture.
Hartley Rogers Jr.

Born: 1926
Died: July 17, 2015 (aged 89)
Bio: Hartley Rogers Jr. was a mathematician who worked in recursion theory, and was a professor in the Mathematics Department of the Massachusetts Institute of Technology. The Rogers equivalence theorem is named after him.