Sayings exist for a reason. You are the sum of the 5 people you are around the most. That could be your net worth, yourself worth, your personality, all of it and more. We are social being and in order to become a part of the click of people you need to blend in or offer something to better yourself and those around you. A great book to read on this is Dale Carnegie's book, How to Win Friends and Influence People. If you are the smarted person in the room, however, you need to find a new room.