My favorite "words to live by" ( and I actually do, or at least work on living by these words every day)... the components of the book: The Four Agreements:
1. Be Impeccable with your word.
Speak with Integrity. Say only what you mean. Use the power of the word in the direction of truth and love.
2. 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.
3. 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 drama.
4. Always do your best.
Your best is going to change from moment to moment. Under any circumstance, simply do your best.
As Alicia Keys and Missy Elliott always say, "I am a work in progress!"