当技术发展速度超过道德时,我们正在构建一个无法控制的未来。
Time travel is the most frustrating thing in the world. You can't change anything, and you can't stop anything from happening.
The human being needs sadness as much as he needs joy.
——与日本广州新闻社记者的谈话,1924年3月
Love is not enough. It has to be tended, like a fire.