科学是理解世界，而工程是改变世界。
Science is about understanding the world, and engineering is about changing it.
The problem with defending the purity of the English language is that English is about as pure as a cribhouse whore. We don't just borrow words; on occasion, English has pursued other languages down alleyways to beat them unconscious and rifle their pockets for new vocabulary.
解释：自己行为不端的人就难以要求别人行为端正，不孝顺父母的人也不能忠于君主。
Sustainability is not an option; it's a necessity for long-term success.
不要等待领导者；独自行动，人与人之间。
We’re here to put a dent in the universe.Otherwise why else even be here？
"To be an actor is to be a perpetual student of human nature."