The only true voyage of discovery would be not to visit strange lands but to possess other eyes, to behold the universe through the eyes of another, of a hundred others.
The revolution is not an apple that falls when it is ripe. You have to make it fall.
只有当人能够察看自己的内心深处时,他的视野才会变得清晰起来。向外看的人是在梦中、向内看的人是清醒的人。
Reinforcement is the central factor in the acquisition of new behavior patterns.