Also, I'd add, at least:
Introduction to Algorithms / Cormen, Leiserson & Rivest (and recently also Stein)
On the other hand, Knuth has an incredible capacity to read, interpret, understand, and especially apply and expand the contents of research papers -- far beyond the capacity of nearly anyone else.
So if you want to spend a lot of time reading through ACM and IEEE journals, have fun. But you'll understand the research and be able to apply it far better when helped by Knuth.
By the way - the same goes for Graham-Knuth-Patashnik's Concrete Mathematics.
There are much better resources for philosophy and Christianity, fundamental \neq best
Agreed. It's very much like "Feynman's Lectures" in this way.