It doesn’t matter what anyone thinks of you.
It doesn’t matter if someone thinks you are the smartest and most clever person they know.
It doesn’t matter if someone praises all the choices you have made from the car you drive to the paint color of your house.
It doesn’t matter if someone sees you as a perfect role model showing how to lead a rich life.
It does not matter what other people think because if you are that easily influenced by what others think, you are not solid within yourself.
To keep it short and simple – it means shit if others think you are great, smart, capable, etc. and you don’t already believe it for yourself.