University President: Why is it that you physicists always require so much expensive equipment? Now the Department of Mathematics requires nothing but money for paper, pencils, and erasers...and the Department of Philosophy is better still. It doesn't even ask for erasers.  -   Issac Asimov     Quotes
University President: Why is it that you physicists always require so much expensive equipment? Now the Department of Mathematics requires nothing but money for paper, pencils, and erasers...and the Department of Philosophy is better still. It doesn't even ask for erasers. Issac Asimov
 Mathematics