He glanced back at the wall. How like

He glanced back at the wall. How like a mirror, too, her face. Impossible; for how many people did you know who reflected your own light to you? People were more often–he searched for a simile, found one in his work–torches, blazing away until they whiffed out. How rarely did other people’s faces take of you and throw back to you your own expression, your own innermost trembling thought?
— Ray Bradbury, Fahrenheit 451