If I was asked to condense how to live into something that would fit on the back of an envelope, I might opt for something close to Buddhism's Eightfold Path:
1. right understanding: see things as they are.
2. right intention: resolve to follow the Path.
3. right speech: abstain from deception.
4. right action: practice compassion and abstain from aggression.
5. right livelihood: choose work compatible with the Path.
6. right effort: promote good and avoid evil.
7. right mindfulness: be aware of your thoughts, words, and actions.
8. right concentration: meditate on Oneness.
I don't consider myself a Buddhist. (As Ferris Bueller said, "Ism's in my opinion are not good. A person should not believe in an -ism, he should believe in himself.") And I disagree with several of Buddhism's fundamental tenets (such as that attachment is undesirable because it necessarily causes more suffering than joy). But as a first approximation I think it's a fairly reasonable approach to living the right way.