How’s things, man?” The black man extended his hand for a handshake. Mathematical formulae were jotted on the sleeve of his shirt, right up to the elbow.“Very good,” said Peter. It had never occurred to him before that dark-skinned people didn’t have the option of jotting numbers on their skin. You learned something new about human diversity every day.
Michel Faber, The Book of Strange New Things
black, dark-skinned, diversity