Guided only by their feeling for symmetry simplicity and generality and an indefinable sense of the fitness of things creative mathematicians now as in the past are inspired by the art of mathematics rather than by any prospect of ultimate usefulness.
I was very much into buying contemporary art but I've just decided I want to get rid of it all. Not that it's not great art but all of a sudden my mood has changed and I want to go back to seventeenth- and eighteenth-century masters.