The best time to plant a tree was 20 years ago. The second best time is now.

"I want to create books that are experienced, not just read."

Darkness cannot drive out darkness: only light can do that. Hate cannot drive out hate: only love can do that.

The power is in the balance: we are our injuries, as much as we are our successes.

出自春秋·鲁·孔子《论语》。孔子杜绝了四种弊病，不妄意，不妄下决断，不固执，不以自我为中心。

The best businesses don't just adapt to change; they drive it.