Some famous quotes often give interesting insights into the vision of mathematics that certain mathematicians have. Which ones are you particularly fond of?
Standard community wiki rules apply: one quote per post.
Some famous quotes often give interesting insights into the vision of mathematics that certain mathematicians have. Which ones are you particularly fond of? Standard community wiki rules apply: one quote per post. 

closed as no longer relevant by Scott Morrison♦ Apr 28 '10 at 17:51This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. If this question can be reworded to fit the rules in the help center, please edit the question. 


Who can does; who cannot do, teaches; who cannot teach, teaches teachers. Paul Erdos. 


Mathematicians are born, not made.  Henri Poincare 


"There are, therefore, no longer some problems solved and others unsolved, there are only problems more or less solved, according as this is accomplished by a series of more or less rapid convergence or regulated by a more or less harmonious law. Nevertheless an imperfect solution may happen to lead us towards a better one." Henri Poincare 


"Mathematics consists of proving the most obvious thing in the least obvious way."  George Polya 


Mathema est ars et scientia, discenda Aquinas? 


There are 10 kinds of people in the world, those that understand binary and the other 9. 


Without Mathematics Earth is just a Big Zero  Chacko Mash 

