A fool hates knowledge (Proverbs 1:22), takes no pleasure in understanding (Proverbs 18:2), enjoys wicked schemes (Proverbs 10:23), proclaims folly (Proverbs 12:23), spurns a parent’s discipline (15:5), speaks perversity (19:1), is quick-tempered (12:16), gets himself in trouble with his proud speech (14:3), mocks at sin (14:9), is deceitful (14:8), and despises his mother (15:20). A foolish child brings grief to his or her parents (17:25; 19:13). A foolish man commits sexual immorality (6:32; 7:7–12). A foolish woman tears down her own house (14:1).