You are the sum of all your friends.
I was told once by a friend, that you are the SUM of all your friends. It took me a while to grasp the depth of this comment but the more I reflected on my life, the more I began to understand. Your friends, (and the people that you surround yourself with), add and contribute to who you are. To put it simply, if you surround yourself with those who constantly TALK about doing things and constantly complain about their lot in life, then over time, so will you.
[For videos of this adventure scroll to the bottom of the post.]