永远不要停止学习，因为世界永远不会停止变化。
Great truths are even more simple than I thought they were....
Every mental state exists for a purpose; to understand it, we must ask what function it serves in the broader system of behavior.
Investing in cleaner coal technology is an investment in the future of energy.
The past is a resource that can be used in the present.
即使可以传达，也无法被理解。