Quote of the day
Even private persons in due season, with discretion and temper, may reprove others, whom they observe to commit sin, or follow bad courses, out of charitable design, and with hope to reclaim them.
Hermann Grassmann
Born: April 15, 1809
Died: September 26, 1877 (aged 68)
Bio: Hermann Günther Grassmann was a German polymath, known in his day as a linguist and now also as a mathematician. He was also a physicist, neohumanist, general scholar, and publisher. His mathematical work was little noted until he was in his sixties.
Known for:
- Die Ausdehnungslehre (1862)
- Extension theory
- A new branch of mathematics
- Wörterbuch zum Rig-Veda (1873)







