只有在以某种有价值的东西做目的时,性命才有价值。
译文:世人有时会遇到意想不到的福运,有时也会遇到意外的灾祸。
We must balance economic growth with environmental responsibility.
灾祸中依存着幸福,幸福中潜伏着灾祸
Science is the knowledge of consequences, and dependence of one fact upon another.
人类的痛苦和快乐是相通的,无论我们来自哪里。