Yeah, I see the sentiment, but that's not exactly a reason to be cheerful if you're suffering from depression. In fact, when you're clinically depressed you either don't care if the whole world lacks feet, or you care too much that everyone in the world lacks feet (thereby depressing yourself further because you can't stop the suffering), or you wish you could swap your depression for their lack of limbs. It may make me sound heartless, but when people told me "but why would you be depressed, you're healthy?" then I knew they didn't have a f*cking clue about what I was going through.