Ecclesiastes 10:6-11

⁶when they put fools in high positions, while those who are richly qualified are put in low positions.

⁷I've seen slaves riding on horseback, while princes walk on the ground like slaves.

⁸If you dig a pit, you could fall in. If you knock down a wall, you could be bitten by a snake.

⁹If you quarry stone, you could be injured. If you split logs, you could be hurt.

¹⁰If your ax is blunt and you don't sharpen it, you have to use a lot more force. Conclusion: being wise brings good results.

¹¹If the snake bites the snake charmer before it's charmed, there's no benefit to the snake charmer!