Be true to oneself and everyone else

Some people say that everybody is two-faced, always hiding a part of their personality inside. I think being true to oneself is not enough for a person to be truly happy, he/she should be true to everyone else around him as well. It may not be pleasing to everyone but at the end of the day it's your mind who's at peace. Be true to oneself and everyone else and you'll have peace of mind.