I remember reading Dandelion Wine (by Ray Bradbury) when I was younger. I don't remember anything about it at all except that I liked it quite a bit. I just found this quote from it that probably explains why I liked it so much.
“Some people turn sad awfully young. No special reason, it seems, but they seem almost to be born that way. They bruise easier, tire faster, cry quicker, remember longer and, as I say, get sadder younger than anyone else in the world. I know, for I’m one of them.”