"Life is like a box of chocolates; you never know what you're gonna get"
Yes, you get fucking chocolate.
(Yes, I know he's talking about the chocolates with various fillings. It still gets me all riled up, though.)
Seems quite apt, actually. If you don't have a key, you don't know what your going to get, unless the chocolate maker uses some standard you have particular experience with, or you have a legend, which are sometimes hard to understand. I don't read them. I just go after the shapes I've learned usually by some companies have better tastes inside. Sometimes this fails horribly.
But it's variety that is narrowly confined: in the same way that life for a male in Canada is confined. You can make a prediction (it's chocolate) but not specifics (Carmel filling). But you can get different candies for, say, women in Africa.
I like the mix of predictability and variation. So, I think it's a good one.