自由是做法律允许的事情的权利。
The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.
The quality of an organization's discipline determines the quality of its performance.
Science is not just about discovery, but also about the application of knowledge to improve human life.
The strongest factor for success is self-belief.