The following are some humorous and witty copywriting:

1. Life is like a box of chocolates, you never know what the next one will taste like.

2. Life is like a marathon, sometimes you have to slow down and take a breath of fresh air.

3. Failure is a successful mother, but she is often drunk and needs our patient care.

4. Life is like a movie, but I don’t want it to be a tragedy. I always like a happy ending.

5. Don’t be afraid of failure, because even if you don’t jump, you may fall and get a bloody head.

6. Don’t underestimate anyone, because you may accidentally overestimate each other.

7. Don’t waste your time on people who don’t want to be friends with you. They are not worth your time.

8. Life is like a journey. What is important is not the destination, but the scenery along the way and the mood when viewing the scenery.

9. Don’t give up easily, because life is always full of surprises and turns.

10. When you feel stressed out, try taking a walk and let the breeze take away your worries.

I hope these humorous and witty copywriting can bring you some laughter and inspiration!