20多岁时，人格的变化比人生中任何其他时期都要大。

I dreamed a dream in time gone by.

Fame is not the goal. The goal is the art.

The study of psychology is not just about understanding others; it's also about understanding ourselves and how we interact with the world around us.

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.