The research worker, in his efforts to express the fundamental laws of Nature in mathematical form, should strive mainly for mathematical beauty. He should still take simplicity into consideration in a subordinate way to beauty. It often happens that the requirements of simplicity and of beauty are the same, but where they clash the latter must take precedence.

Paul Adrien Maurice Dirac


 

I am interested in mathematics only as a creative art.

Godfrey Harold Hardy