Ecclesiastes 10:1-6

As dead flies cause even a bottle of perfume to stink, so a little foolishness spoils great wisdom and honor. A wise person chooses the right road; a fool takes the wrong one. You can identify fools just by the way they walk down the street! If your boss is angry at you, don’t quit! A quiet spirit can overcome even great mistakes. There is another evil I have seen under the sun. Kings and rulers make a grave mistake when they give great authority to foolish people and low positions to people of proven worth.