Quotes:

"Sometimes your joy is the source of your smile, but sometimes your smile can be the source of your joy."

- Thich Nhat Hanh

Insights:

1. Scientific studies show that "self-perception theory" - acting "as if" one feels something will result in that feeling - is actually true.
2. If you don't feel like being nice, act like a nice person would, you'll become a nicer person and feel better about it.

Principles:

1. Fake it until you feel it.