The Four Agreements.

I had to add this to the blogroll. I read this book about three years ago and still use these agreements today:

From the Four Agreements-
Everything we do is based on agreements we have made. In these agreements we tell
ourselves who we are, what everyone else is, how to act, what is possible, and
what is impossible. What we have agreed to believe creates what we experience.

When these agreements come from fear, blocks and obstacles develop keeping us from realizing our greatest potential.

Based on ancient Toltec wisdom , the Four Agreements offer a powerful code of
conduct that can rapidly transform our lives and our work into a new experience of effectiveness, balance and self supporting behavior.

BE IMPECCABLE WITH YOUR WORD
Speak with integrity. Say only what you mean. Avoid using the word to speak against yourself or to gossip about others. Use the power of your word in the direction of truth and love.

DON'T TAKE ANYTHING PERSONALLY
Nothing others do is because of you. What others say and do is a projection of their own reality, their own dream. When you are immune to the opinions and actions of others, you won't be the victim of needless suffering.

DON'T MAKE ASSUMPTIONS
Find the courage to ask questions and to express what you really want.
Communicate with others as clearly as you can to avoid misunderstandings, sadness, and dram With just this one agreement, you can completely transform your life.

ALWAYS DO YOUR BEST
Your best is going to change from moment to moment; it will be different when you are healthy as opposed to sick. Under any circumstance, simply do your best, and you will avoid self-judgement, self-abuse, and regret.

The Four Agreements Site