you smile.
not because the world is a beautiful place, where happiness blossoms like an indian night jasmine in the hearts of every single being that exists upon it, no, you smile because sadness is relative. you smile because when melancholy visits and your face feels lank and rubbery, the only thing you know how to do is put on that surface smile you leave the house with everyday, the one that doesn't stretch to your eyes.
you smile because the world makes you frown and cry, and frown lines are unacceptable.