The theory of economic development is the study of how the economic system generates the forces which incessantly transform it.
积极心理学不仅仅是感觉良好，而是关于美好的生活。
The best way to predict the future is to create it.
"Stories are not just for bedtime. They are for anytime you need to escape, to dream, to laugh, or to cry."
You have to take the opportunities when they come along.