The price of freedom is eternal vigilance.
成人必须给幼儿提供活动的空间。
我们要做的是让每个人都能享受到互联网的红利。
"Innovation is the central issue in economic prosperity."
The study of the mind is the study of life's coping mechanisms.
爱是触及另一个人人格最内在核心的唯一方式。