（把丝）放于青色的染料中，丝就染成青色；（把丝）放于黄色的染料中，丝就染成黄色。墨子非常重视环境对人的影响。墨子有一次看到染丝的，感叹说：‘染于苍则苍，染于黄刚黄。所入者变，其色亦变。"其寓意是说环境的熏陶、社会风气的感染，会对人的思想、品质产生重要的影响。它可提醒人们要十分注意社会影响、文化氛围对人的感染，熏陶作用，切不可掉以轻心。

Write a program as carefully as you write a letter.

"The act of reading is as creative as the act of writing."

政府的腐败几乎总是始于其原则的衰败。

You get towards the end of life—no, not life itself, but of something else: the end of any likelihood of change in that life.

"You have to be willing to take risks to achieve great things."