Quotable maths: Bourbaki Sep 13, 2012 Structures are the weapons of the mathematician - Bourbaki A selection of other posts Oct 15, 2018 A moment of neatness Apr 28, 2014 A student asks: Why does variance do THAT? Jan 7, 2013 Remembering how to differentiate - Secrets of the Mathematical Ninja May 11, 2012 Free for all Friday subscribe via RSS