In times of crisis, true leadership is revealed by actions, not words.
In mathematics, the journey of discovery is as important as the destination.
地理学是关于地方的科学,而不是关于人的科学。
善意并不是自己内心发出的,不能保留;行为自身不能够理解和辨别的,不能去做。
The greatest happiness is to transform one’s feelings into action.
因此,我决定只阅读那些被处决过或以某种方式冒过生命危险的人的著作。