On the contrary, 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. And if every individual is worth observation as a single thought of nature, how much more so is beauty, since it is a higher and more general conception of nature, is, in fact, her thought of a species. This is why beauty is so captivating: it is a fundamental thought of nature: whereas the individual is only a by-thought, a corollary.
In private, people always proceed upon the principle that a man is what he looks; and the principle is a right one, only the difficulty lies in its application. For though the art of applying the principle is partly innate and may be partly gained by experience, no one is a master of it, and even the most experienced is not infallible. But for all that, whatever Figaro may say, it is not the face which deceives; it is we who deceive ourselves in reading in it what is not there.