Quote of the day
No written law has ever been more binding than unwritten custom supported by popular opinion.
Tjalling Koopmans
Born: August 28, 1910
Died: February 26, 1985 (aged 74)
Bio: Tjalling Charles Koopmans was a Dutch American mathematician and economist, the joint winner with Leonid Kantorovich of the 1975 Nobel Memorial Prize in Economic Sciences.