For the seemly relaxation of the countenance in a harmonious manner—as of a musical instrument—is called a smile. So also is laughter on the face of well-regulated men termed. But the discordant relaxation of countenance in the case of women is called a giggle, and is meretricious laughter; in the case of men, a guffaw, and is savage and insulting laughter. “A fool raises his voice in laughter,” says the Scripture; but a clever man smiles almost imperceptibly. The clever man in this case he calls wise, inasmuch as he is differently affected from the fool. But, on the other hand, one needs not be gloomy, only grave. For I certainly prefer a man to smile who has a stern countenance than the reverse; for so his laughter will be less apt to become the object of ridicule.