Mathematics is the only true metaphysics.

Mathematics is the only true metaphysics.

All of science can be divided into physics and stamp-collecting.

Fourier's theorem is not only one of the most beautiful results of modern analysis, but it may be said to furnish an indispensable instrument in the treatment of nearly every recondite question in modern physics.

Large increases in cost with questionable increases in performance can be tolerated only in race horses and fancy women.

Quaternions came from Hamilton after his really good work had been done, and though beautifully ingenious, have been an unmixed evil to those who have touched them in any way.

When you are face to face with a difficulty, you are up against a discovery.