If people do not believe that mathematics is simple, it is only because they do not realize how complicated life is. – John Louis von Neumann

Arithmetic is where the answer is right and everything is nice and you can look out of the window and see the blue sky – or the answer is wrong and you have to start over and try again and see how it comes out this time. – Carl Sandburg

Pure mathematics is, in its way, the poetry of logical ideas. – Albert Einstein

Mathematics are well and good but nature keeps dragging us around by the nose. – Albert Einstein

Black holes result from God dividing the universe by zero. – Author Unknown

Mathematics – the unshaken Foundation of Sciences, and the plentiful Fountain of Advantage to human affairs. – Isaac Barrow

Math is radical! – Bumper Sticker

Arithmetic is where numbers fly like pigeons in and out of your head. – Carl Sandburg, "Arithmetic"

Arithmetic is numbers you squeeze from your head to your hand to your pencil to your paper till you get the answer. – Carl Sandburg, "Arithmetic"

If equations are trains threading the landscape of numbers, then no train stops at pi. – Richard Preston

Even stranger things have happened; and perhaps the strangest of all is the marvel that mathematics should be possible to a race akin to the apes. – Eric T. Bell, The Development of Mathematics

The essence of mathematics is not to make simple things complicated, but to make complicated things simple. – S. Gudder

The human mind has never invented a labor-saving machine equal to algebra. – Author Unknown

The mathematics are distinguished by a particular privilege, that is, in the course of ages, they may always advance and can never recede. – Edward Gibbon, Decline and Fall of the Roman Empire

Go down deep enough into anything and you will find mathematics. – Dean Schlicter

It is not the job of mathematicians… to do correct arithmetical operations. It is the job of bank accountants. – Samuil Shchatunovski

Trigonometry is a sine of the times. – Author Unknown

Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost. Rigour should be a signal to the historian that the maps have been made, and the real explorers have gone elsewhere. – W.S. Anglin

Let us grant that the pursuit of mathematics is a divine madness of the human spirit, a refuge from the goading urgency of contingent happenings. – Alfred North Whitehead

Mathematics is as much an aspect of culture as it is a collection of algorithms. – Carl Boyer, 1949, calculus textbook