Russell Bertrand. 1872-1970. English pacifist, mathematician, philosopher, and author (Nobel, 1950).

At the age of eleven, I began Euclid, with my brother as tutor. This was one of the great events of my life, as dazzling as first love. I had not imagined there was anything so delicious in the world. From that moment until I was thirty-eight, mathematics was my chief interest and my chief source of happiness.

Bertrand Russell: From Euclid to Nobel - A Lifelong Love for Mathematics, Geometry, and Peace