Euclid's 'Elements' & MoI

 From:  SurlyBird
5492.1 
This is completely random, but I thought it was worth sharing:

I am working my way through Euclid's 'Elements' and MoI is the perfect tool in which to do it. This is the most fun I've had in a long time... better than any game or cross-word puzzle.

Euclid would have cried tears of joy if he had MoI.