Come on. Not about suppressing your hobby, it's about not being identified solely with it.
That's the stuff you pull out after you get married. Then it eventually ends up in a small closet about 5 years later. Ultimately, it ends up being what you have around you as you get old again. Life's funny that way.
I agree with your advice, but I don't think that's what he's saying.
I mean, a paragraph later he talks about getting an "identity mug" and earlier about wanting to get Shire wallpaper and how he listens to dwarf music. I can't tell if he's being ironic or dense or if he doesn't like Star Trek.
That's the stuff you pull out after you get married. Then it eventually ends up in a small closet about 5 years later. Ultimately, it ends up being what you have around you as you get old again. Life's funny that way.