Most was good, but not all of it.I did not mean to minimize the value of a good teacher and I fully understand the desirability of a good teacher. But as we all know some teacher are no better than poor books. Books are hardly outlines though and usually more detailed than an instructor's lecture. And yes a good instructor should work together with a book.
A good book is as engaging as a good instructor. It calls you back to it's pages and delivers enjoyment and you can always revisit it where the lecturer's words are lost forever.
Some books, some GOOD books, really are outlines for a course, although maybe too detailed, and maybe including a few things that the ordinary course might not need.