The question I should have been asking when deciding what to include in my canon came to me when I was watching a cheesy sci-fi movie.
What works would I recommend to an intelligent extraterrestrial to give it an understanding of humanity?
I realize that it is kind of a silly question, but it has helped me focus. It would eliminate most science texts, as we could assume that any being intelligent enough to travel through interstellar space would understand science at least as well as we do. Most philosophy, arguably, could be removed also, as any practical application of it is reflected in other seminal works.
While I understand that a knowledge of science is essential for any 21st century human (American human, anyway), it is not essential that I read Newton’s Principia. Nor is it necessary to read Locke, if we can see his ideas reflected in the US Constitution and the Federalist Papers. Reading summaries of scientific and philosophic ideas would suffice, as the primary texts are no longer part of my canon.
And, because more than 2 or 3 works by a single author (with possibly the sole exception of Shakespeare) would be unnecessary, the list is further narrowed.
But to how many?
That was relatively easy. 247. It is the number of books currently on the large bookcase in my living room. It is also a number that could be digested over a few years, rather than a lifetime, which would be necessary for this hypothetical ET.
More important than all of this, though, is that I will never, in all likelihood, run into this ET, and no one will look to my canon as The Canon for all of human endeavor. I am not a philosopher, nor a scientist, nor a literature professor. My knowledge of any of these subjects does not need to be comprehensive. My canon will be mine alone, and its purpose is to allow me to see the commonality of human experience. Nothing more. To attempt more is get mired in details, be overwhelmed by the enormity of the task, and never get started.
With this focus, I was freed from my own tyranny. I am no longer beholden to the 800 items, many of which are irrelevant to my pursuits. It is no longer a chore I dread, but something I can enjoy over time. It is manageable, and that is what any item on a life-list should be.