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

The best way to predict the future is to create it.

The facts of life are very simple, but the stories we tell about them are very complicated.

群体在智力上总是低于孤立的个人。

人在幼年时，精神专注敏锐，成年后思想容易分散，因此教育要趁早，不可错过时机。