That's from a famous play...
They find out hell isn't being burned up and tortured, you're just stuck in a room with the same people for thousands of years.
You know what's really sad about that?
It's only true if you're a jerk.
I spent a good part of my life being completely disinterested in others unless I saw something of value in them. What it was that changed it for me I'm not sure, but I started to see value in everyone, I started to care what they thought and felt.
You don't have to fake it, I can say to myself "I'm not terribly interested in that, but it's important to you and you're important to me, so tell me why you enjoy it". It turns out a lot of "stupid" things are actually kind of cool. Maybe I decided one day I wanted to make people feel better when they were around me instead of worse. Maybe I just grew up.
If you're jaded and angry at the world, don't take it out on the people around you. Don't say "I'm having a bad day" because after so many of those, it's just who you are.
I have a lot more friends now, some of whom I would have considered useless idiots in the past. They're actually really cool people once you get to know them. But first you have to get to know them.