So happiness is the most popular word we have heard through the past two years. Happiness is not only related to personal experiences and personal values, but also, it's about the environment.
物理学不仅是一门科学，它是一种思考世界的方式。
最有效的领导者是那些能够授权他人去领导的人。
集中的权力并不会因为创造它的人的良好意图而变得无害。
The challenge of our time is to build an economy that works for everyone, not just the privileged few.