Ecclesiastes 10:1-3; Ecclesiastes 10:12-15

1 Dead flies cause the oil of the perfumer to send forth an evil odor; so does a little folly outweigh wisdom and honor.

2 A wise man's heart is at his right hand, but a fool's heart at his left.

3 Yes also, when the fool walks by the way, his understanding fails him, and he says to everyone that he is a fool.

12 The words of a wise man's mouth are gracious; but a fool is swallowed by his own lips.

13 The beginning of the words of his mouth is foolishness; and the end of his talk is mischievous madness.

14 A fool also multiplies words. Man doesn't know what will be; and that which will be after him, who can tell him?

15 The labor of fools wearies every one of them; for he doesn't know how to go to the city.