The only real beauty is the beauty of the soul.
唯一真正的美是灵魂的美。
有两种自由——一种虚伪的自由，一个人可以为所欲为；一种真正的自由，一个人可以为所应为。
The key function of banks is transforming illiquid assets into liquid liabilities.
2000年10月29日，在南京大学捐资设立杨振宁奖学金时，杨振宁表示，虽然我父亲是大学教授，但因为通货膨胀，家里很穷，生活很艰苦，是奖学金帮我度过了难关。近几年多次在大陆访问，看到不少青年学生因家境困难而影响学业，感到很伤心，所以就有了这么个想法。杨振宁说
It took untold generations to get you where you are. A little gratitude might be in order. If you're going to insist on bending the world to your way, you better have your reasons.
Sometimes, the only way to stay sane is to go a little crazy.