Sustainability is not an option; it's a necessity for long-term success.
可持续性不是一种选择；它是长期成功的必要条件。
物理学家必须能够想象。
The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.
The flesh is sad, alas, and I have read all the books.
学习一门新编程语言的唯一方法是用它编写程序。