最好的投资是那些对人类和地球都有益的投资。

"I hope my books can help children see the world in a different way, to notice the small details and the hidden meanings."

"We are all broken, that's how the light gets in."

如果用心一旦松散，那么万事都做不好。如果用心一旦粗疏，那么凡事不能聚精会神。用心一旦固执，凡事就不能见其本来面目。

I like to buy stocks when they are on sale.

设计良好的算法的美在于其简洁和高效。