At the age of eleven, I began Euclid, with my brother as my 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, The Autobiography of Bertrand Russell .
Geometry is the noblest branch of physics.
Byrne's edition of Euclid, Oliver Byrne's edition of Euclid An unusual and attractive edition of Euclid was published in 1847 in England, edited by an otherwise unknown mathematician named Oliver Byrne. Home page of Arthur Baragar, the author of our textbook. History of Euclid The Geometry Junkyard , David Eppstein, UC Irvine. A mix of recreational geometry and research problems. The Geometry Forum , Swarthmore College, concerns itself with K-12 geometry education, but also maintains a geometry research mailing list with archives on their web site.