the.com/abrasive
the friction that smooths the world while wearing itself down to nothing
sandpaper originOnce made with crushed glass and shark skin
Mohs scaleDiamond grinds everything; nothing grinds diamond
jewelers' trickToothpaste is a mild abrasive polishing your enamel away
social meaningPersonalities, like sandpaper, smooth others through rough contact
self-sacrificeGrit dulls itself with every surface it perfects