In mathematics, the art of asking questions is more valuable than solving problems.

This view [of the infinite], which I consider to be the sole correct one, is held by only a few. While possibly I am the very first in history to take this position so explicitly, with all of its logical consequences, I know for sure that I shall not be the last!

The essence of mathematics lies precisely in its freedom.

I realize that in this undertaking I place myself in a certain opposition to views widely held concerning the mathematical infinite and to opinions frequently defended on the nature of numbers.

Mathematics, in the development of its ideas, has only to take account of the immanent reality of its concepts and has absolutely no obligation to examine their transient reality.

Great innovation only happens when people aren't afraid to do things differently.

In mathematics the art of proposing a question must be held of higher value than solving it.