Profit is not the legitimate purpose of business. The legitimate purpose of business is to provide a product or service that people need and do it so well that it's profitable.

There is no point treating a depressed person as though she were just feeling sad, saying, 'There now, hang on, you'll get over it.' Sadness is more or less like a head cold- with patience, it passes. Depression is like cancer.

问题在于我们不仅不理性，而且是可预测的非理性——我们的非理性行为会以同样的方式一再发生。

To listen is to allow the world to enter you.

Don’t let success go to your head or failure go to your heart.