Quote of the day
It is by going down into the abyss
that we recover the treasures of life.
Where you stumble,
there lies your treasure.
Joan Birman

Born: May 30, 1927 (age 99)
Bio: Joan Sylvia Lyttle Birman is an American mathematician, specializing in braid theory and knot theory. Her book Braids, Links, and Mapping Class Groups has become a standard introduction, with many of today's researchers having learned the subject through it.






