Quote of the day
Time and trouble will tame an advanced young woman, but an advanced old woman is uncontrollable by any earthly force.
John Playfair
Born: March 10, 1748
Died: July 20, 1819 (aged 71)
Bio: John Playfair was a Scottish scientist and mathematician, and a professor of natural philosophy at the University of Edinburgh.
Known for:
- Elements of geometry (1806)
- Infection and Immunity