"Every human face is a hieroglyphic, and a hieroglyphic, too, which admits of being deciphered, the alphabet of which we carry about with us already perfected. As a matter of fact, the face of a man gives us a fuller and more interesting information than his tongue; for his face is the compendium of all he will ever say, as it is the one record of all his thoughts and endeavors. And, moreover, the tongue tells the thought of one man only, whereas the face expresses a thought of nature itself: so that everyone is worth attentive observation, even though everyone may not be worth talking to."

~ Schopenhauer | On Physiognomy