I liked this quote because my favorite type of reading is fiction and I thought it really described some of the things you realize when reading fiction.
*Spoiler Alert* This isn't a very well known book, but I love it. I've also quoted it more posts. If you don't recognize it, it is The Mortal Instruments.
This is a plot that is explained badly, and if you can't guess it, then you haven't read the book so I will not say what it is about, so I don't spoil the book.
This picture shows a soup kitchen, and I thought it described the question best, but that is not the only thing that people can't control. For example, how you look. The phrase don't judge a book by it's cover could also represent this.