The arithmetical symbols are written diagrams and the geometrical figures are graphic formulas.

One can measure the importance of a scientific work by the number of earlier publications rendered superfluous by it

Some people have got a mental horizon of radius zero and call it their point of view.

I do not see that the sex of the candidate is an argument against her admission as a Privatdozent. After all, the Senate is not a bathhouse. Objecting to sex discrimination being the reason for rejection of Emmy Noether's application to join the faculty at the University of Gottingen.

The art of doing mathematics consists in finding that special case which contains all the germs of generality.

One hears a lot of talk about the hostility between scientists and engineers. I don't believe in any such thing. In fact I am quite certain it is untrue... There cannot possibly be anything in it because neither side has anything to do with the other.

The infinite! No other question has ever moved so profoundly the spirit of man.