Emil Artin
I am opposed to textbooks... I find it hateful to give a course where I have to plough my way through chapter after chapter of a given book. The liveliness of the lecture, which is meant to give an impetus to the sudents, would suffer tremendously.Collection: Book
It is my experience that proofs involving matrices can be shortened by 50% if one throws the matrices out.Collection: Mathematics
This skipping is another important point. It should be done whenever a proof seems too hard or whenever a theorem or a whole paragraph does not appeal to the reader. In most cases he will be able to go on and later he may return to the parts which he skipped.Collection: Science