Note 1193 — PERSIUS.
Lewis Evans translation
Quid faciam? "How shall I check the outburst of natural feeling? For my character, implanted by nature, is that of a hearty laugher." Cachinno is a word used only by Persius. Cf. Juv., iii., 100, "Rides? majore cachinno concutitur." The ancients held the spleen to be the seat of laughter, as the gall of anger, the liver of love, the forehead of bashfulness.