MacPherson told me that my theorem can be viewed as blah blah blah Grothendieck blah blah blah, which makes it much more respectable.

- Jim Propp

What promotes math progress even more than new ideas are new technical tools and habits of thought that encapsulate existing ideas, so that insights …

- Jim Propp

I think some intuition leaks out in every step of an induction proof.

- Jim Propp