The heart of the wise is in the house of mourning, the heart of fools is in this house of gaiety. Better attend to a wise man's reprimand than listen to a song sung by a fool. For laughter makes a fool of the wise man and merriment corrupts the heart. Better laughter than sadnes, a joyful face calls men together. The songs of folly are often wiser than the paragraphs of wisdom.
Fools are most visible in their seriousness, and constant gravity rots the heart.