对付不自由世界的唯一方法就是变得绝对自由，以至于你的存在本身就是一种反抗。
水是一切自然界的驱动力。
Leadership is about making tough decisions with courage and empathy, even when they’re unpopular.
The discovery of stars orbiting the supermassive black hole at the galactic center was a turning point in astrophysics.
分别时南飞的鸿雁刚刚北去，今日北归的大雁又已南飞
Change is hardest at the beginning, messiest in the middle, and best at the end.