The good times of today, are the sad thoughts of tomorrow.

世界是一本书，不旅行的人只读了一页。

Collaboration across industries and borders is essential to solving the complex challenges of climate change.

Boys, you must strive to find your own voice. Because the longer you wait to begin, the less likely you are to find it at all. Thoreau said, "Most men lead lives of quiet desperation." Don't be resigned to that. Break out.

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.