"In a World Full of Kardashians, Be Diana"
It means that, In a world, where you are famous for being famous, be famous like Princess Diana and not just famous like Kim Kardashian. Princess Diana was famous for being the wife of Prince Charles, the ruling prince of the UK. She was famous because of her title, but she used her title more positively by being in the media for the right reasons such as supporting charities and helping the poor, even after having a very dubiously infamous personal life full of separation from her royal husband and having multiple affairs. Even after her death more than a decade ago, she is remembered as a caring and helping royal. On the other side, Kim Kardashian is famous for being a bimbo pornstar married to an egoistical rapper and currently known for giving birth to a Compass direction.