Buzz·Posted on 28 Jul 2014The 23 Most Memorable Blackboard Gags From "The Simpsons""Goldfish don't bounce."by Robin EddsBuzzFeed Staff, UK LinkFacebookPinterestTwitterMail 1. On respect. 2. On nature. 3. On excuses. 4. On health care. 5. On efficiency. 6. On modesty. 7. On the internet. 8. On food hygiene. 9. On song lyrics. 10. On friendship. 11. On napping. 12. On maturity. 13. On world history. 14. On religion. 15. On diseases. 16. On self-deprecation. 17. On subliminal messages. 18. On education. 19. On grammar. 20. On email. 21. On politics. 22. On telling the truth. 23. And finally, of course, on loss...