I can truthfully say that I've never had a day in my adult life when I didn't think, at least briefly, about this play. I compare every book, film, song, bubble gum comic, and conversation, to it. It's the standard that I use to determine if the media I'm thinking about is "good enough." Actually I had one other experience like this, which was when I saw Clampett's "Great Piggy Bank Robbery" for the first time, but we're talking about books so I'll leave that for another day.
Like everyone else I've been reduced to tears by this story (above) many times. The candlestick scene is one of the greatest in all of literature. The story is especially important to me because I think it revealed my own true self to me. Before I read this I used to imitate what other people did and seemed to have success with, even if it felt hard-edged and out of character to me. After reading the story I realized that I was a Hugo kind of character, sentimental and earnest, and that life strategies that worked for other personality types probably wouldn't work for me. Frankly if I could chose my personality I think I'd pick something different but these are the cards I've been dealt and Hugo taught me to accept them.
"David Copperfield" (above) and Boswell's "Life of Johnson" (below) both taught me the importance of character in all the meanings of that word. One sense requires a layering and a balancing of interesting traits that don't always fit comfortably together. The other sense indicates reliability and guts. I don't have these characteristics but I'm grateful for the push in that direction provided by these books.
I also like the way England is described in these books. You get a sense of a rough, brutal place which is somehow struggling to give birth to something really impressive and worthwhile.
Well, that's it. I should add that I picked these pictures from the internet based soley on the attractiveness of the covers. If you're going to read these books then you should shop around for the the best type styles, editing and translations. For the Boswell book start with the part about a third of the way through where Boswell meets Johnson then, when you've read to the end, go back and read the first third. You might want a slight abridgement of the Hugo story.