Iron

Well, let's have one more quote - recently re-told by Meryl Streep in The Iron Lady.

Watch your thoughts, for they become your words.
Watch your words, for they become your actions.
Watch your actions, for they become your habits.
Watch your habits, for they become your character.
Watch your character, for it becomes your destiny.

This quote was widely believed to be written by a man named Frank Outlaw - but nobody really seems to know who this Outlaw is.

The very phenomenon is, however, the entire argument can go the other way round and still holds:

Watch his destiny, for it reflects his character.
Consider his character, for it predicts his actions.
Watch his actions, for they reflect his thoughts.

I'm a bit too cynical, I know.