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

Do you really believe that the moon isn’t there when nobody looks?

The best that Gauss has given us was likewise an exclusive production. If he had not created his geometry of surfaces, which served Riemann as a basis, it is scarcely conceivable that anyone else would have discovered it. I do not hesitate to confess that to a certain extent a similar pleasure may be found by absorbing ourselves in questions of pure geometry.

The Press, which is mostly controlled by vested interests, has an excessive influence on public opinion.

The only way to escape the corruptible effect of praise is to go on working.

Joy and amazement of the beauty and grandeur of this world of which man can just form a faint notion.

I want to know all God's thoughts.