Stephen Hillenburg passed away on November 27, 2018. Hillenburg, a former marine biology teacher, was best known for creating "SpongeBob Squarepants," the mega-hit cartoon beloved by millions of people of all ages. The show has taught us many lessons over the almost 20 years, even if we didn't realize we were learning.

In honor of Hillenburg, Here are 15 lessons and things he's shown us over time.

1. How to tie your shoes

When Spongebob forgets how to tie his shoes, Gary plays this song which shows Spongebob and teaches kids every where how to tie shoes, including myself.

2. Animal Safety

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Protect yourself from any and all sea bears.

3. How to write a paper

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He related to every college student ever.

4. Importance of indoors

Outside is great and all, but have you ever tried being alone indoors?

5. True Friendship

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There's no better friendship than Spongebob and Patrick. You need that friendship in your life.

6. Sweater Weather really is the best weather. 

Sweaters are great, Striped Sweaters are even better.

7. How to draw

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Just be careful what you draw, it could take you down.

8. Let yourself be a kid

Be a goofy goober. We're all goofy goobers.

9. Be Yourself

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Never stop doing what you love and do it well.

10. What it means to have F.U.N.

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Spongebob and Plankton spells out how to have fun in more ways than one.

11. Spongebob shows you who your real friends are. 

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The best friends are the ones that understand your Spongebob references.

12. Don't be afraid to use your imagination

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Creation your own fun.

13. When people try to bring you down, build them up. 

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While Squidward was constantly trying to put a damper on Spongebob's happy self, He never let it get to him. He was always the little ray of sunshine that Squidward needed.

14. Never Give Up

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No matter how many times Spongebob failed his driving test, He always tried again.

15. Make the bad days the best day ever. 

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When what was supposed to be the best day ever turned into the worst day ever, Spongebob did what anyone else would do and started getting down. He then picked himself back up and decided to make at least one thing go right.

Thank you, Stephen Hillenburg, for creating a show that changed and impacted many lives, including my own.