写作是那些没有写作就无法生活的人的职业。

Flowers always make people better, happier, and more helpful; they are sunshine, food and medicine for the soul.

The secret of being miserable is to have leisure to bother about whether you are happy or not.

如果你不能安全地开采它，你根本不应该开采它。

创新不仅仅是技术的问题；它关乎改变思维方式并接受新的思考方式。