• Vanity of vanities; all is vanity.

This quote came from the Book of Ecclesiastes in the Old Testament. 

It means that ego and everything you achieve is meaningless... the pointlessness and purposeless of human activity.  Dont believe this illusion of what holds value in life. Just be you . Have faith in god.

Christina Grimmie  († 10. Juni 2016) put this quote on her arm:

"I put that on my arm so I wouldn't fall into the trap of Hollywood. I put that on my arm so I wouldn't be sucked into the glits and the glamour."

Also here:

https://answers.yahoo.com/question/index?qid=20101001184319AAMo7VG