Fear is the main source of superstition, and one of the main sources of cruelty. To conquer fear is the beginning of wisdom, in the pursuit of truth as in the endeavour after a worthy manner of life.
坚持做自己,不要因为别人的眼光而改变自己。
我们应该对一切事物保持冷漠。
心理学必须建立在生活经验的事实基础上。