“In mathematics you don't understand things. You just get used to them.”

John von Neumann

“Pure mathematics is, in its way, the poetry of logical ideas.”

Albert Einstein

“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.”

Isaac Asimov

“Do not worry about your problems with mathematics, I assure you mine are far greater.”

“One reason why mathematics enjoys special esteem, above all other sciences, is that its laws are absolutely certain and indisputable, while those of other sciences are to some extent debatable and in constant danger of being overthrown by newly disco”

“The mathematical sciences particularly exhibit order, symmetry, and limitation; and these are the greatest forms of the beautiful.”

Aristotle

“But there is another reason for the high repute of mathematics: it is mathematics that offers the exact natural sciences a certain measure of security which, without mathematics, they could not attain.”