"I see it, but I don't believe it." Votes: 3
As professor in the Polytechnic School in Zürich I found myself for the first time obliged to lecture upon the elements of the differential calculus and felt more keenly than ever before the lack of a really scientific foundation for arithmetic. Votes: 3
Numbers are the free creation of the human mind. Votes: 3
For what I have accomplished and what I have become, I have to to thank my industry much more, my indefatigable working, rather than any outstanding talent. Votes: 0
That which is provable, ought not to be believed in science without proof. Votes: 0