Over the course of the 10 seasons of "Friends," Rachel Green taught us many things and gave us a lot of life advice. Here are some of the best.

1. It’s never too late to change your mind.

Rachel kicked off the entire show by changing her mind on her wedding day and deciding to take control of her life again. She decided she didn't want to be a shoe any more.

2. It’s also never too late to start over completely.

When Rachel went into the city she completely started her life over... And cut all her credit cards that her dad paid for in half.

3. Never settle.

Rachel refused to settle for marrying Barry, and she also refused to settle for Ross after he wrote a pros and cons list about her.

4. Things don't always go your way, but that's okay.

Rachel's life changed a lot over the course of the 10 season show. There were several ups and downs, but she always managed to make the best out of whatever situation she was in.

5. Always appreciate your friends.

Especially when you acknowledge that at times you haven't been the easiest to deal with.

6. Try to find the humor in every situation.

Sometimes things are just as bad as they seem, but you should still at least try to find the humor in every thing.

7. Sometimes being an adult is hard.

We've all been there...when we want to completely give up decision making because it seems to be leading us in the wrong direction. Rachel understands.

8. Girls are the boss, always.

Rachel always put herself before guys and never lets any of them steal her wind. She also delivered this iconic line proving that girls always rule.

9. People can always surprise you, and not in the best ways.

Rachel delivered this line which pretty much describes anyone who has ever been surprised by someone they trusted.