适合从事任何特定行业的人，如果没有与他一起工作或在他之上的人的帮助和指导，就无法理解该行业的科学。
The man who is fit to work at any particular trade is unable to understand the science of that trade without the help and guidance of those who are working with him or over him.
人类对气候影响的信号已经从自然变化的噪音中显现出来。
城市是一个活的有机体，不断演变。
The best time to work on your career is when you're in your 20s.