It is the "advance man" of our true selves.
Its roots are inward but its fruit is outward.
It is our best friend or our worst enemy.
It is more honest and consistent than our words.
It is an outward look based on past experiences.
It is a thing which draws people to us or repels them.
It is never content until it is expressed.
It is the librarian of our past.
It is the speaker of our present.
It is the prophet of our future.

John C Maxwell -- The Winning Attitude pg 24.