Quote of the day
Recurrence is sure. What the mind suffered last week, or last year, it does not suffer now; but it will suffer again next week or next year. Happiness is not a matter of events; it depends upon the tides of the mind.
Serge Lang

Born: May 19, 1927
Died: September 12, 2005 (aged 78)
Bio: Serge Lang was a French-born American mathematician. He is known for his work in number theory and for his mathematics textbooks, including the influential Algebra. He was a member of the Bourbaki group.
Known for:
- A First Course in Calculus (1964)
- Basic Mathematics (1971)
- Undergraduate analysis (1983)
- Undergraduate Algebra (1987)
- Introduction to Linear Algebra (1970)