My family has twenty-six bookcases. Some books read, some not. We're going thru the agony of culling books for space reasons (and not making much progress). One strategy is: I intend to fill the largest bookcase with those which formed me; I may or may not remember (per se) the contents, but I do know that I am who I am in great degree because of those books. The hope is they act as a reminder of who I am (when I lose sight of that), encourage me to review & expand those parts, and make a physical manifestation of those formative tomes available to my children that someday they may follow a similar path (or at least know the path that lead to them). Culling "me" to fit that space is hard...