Almost anyone who loves tennis and follows the men's tour on television has, over the last few years, had what might be termed Federer moments. These… - David Foster Wallace

Think of the old cliché about “the mind being an excellent servant but a terrible master.” This, like many clichés, so lame and unexciting on the surface, actually expresses a great and terrible truth. It is not the least bit coincidental that adults who commit suicide with firearms almost always shoot themselves in the head. And the truth is that most of these suicides are actually dead long before they pull the trigger.

Hal Incandenza has an almost obsessive dislike for deLint, whom he tells Mario he sometimes cannot quite believe is even real, and tries to get to the side of, to see whether deLint has a true z coordinate or is just a cutout or projection.

"....there is an ending [to Infinite Jest] as far as I'm concerned. Certain kind of parallel lines are supposed to start converging in such a way that an "end" can be projected by the reader somewhere beyond the right frame. If no such convergence or projection occured to you, then the book's failed for you."