Psychology must be a guide to practical living.

Concerning the gods, I have no means of knowing whether they exist or not or of what sort they may be. Many things prevent knowledge including the obscurity of the subject and the brevity of human life.

唯一能让你成为冠军的是你的专注。

The only way to get to the top is to climb the mountain, not to wait for the elevator.

——《在石家庄国民党交通部欢迎会的演说》（1912年9月21日）