I'm sad because I have no money. $0.44 in my wallet, $6 into my overdraft, and just enough to pay February rent + $20/week for food when my last pay cheque goes through (which should be Friday). I don't work again until the beginning of February.
Maybe in order to understand mankind, we have to look at the word itself: "Mankind". Basically, it's made up of two separate words- "mank" and "ind". What do these words mean? It's a mystery, and that's why so is mankind.