… by natural selection our mind has adapted itself to the conditions of the external world. It has adopted the geometry most advantageous to the species or, in other words, the most convenient. Geometry is not true, it is advantageous.
— Henri Poincaré
(necroreply:) In many ways this is true of mathematics in general, except where those mathematics are adopted for their beauty or elegance.
— Henri Poincaré
(necroreply:) In many ways this is true of mathematics in general, except where those mathematics are adopted for their beauty or elegance.