心理学的价值在于其解释生活的力量。
The value of psychology is in its power to explain life.
A leader does not deserve the name unless he is willing occasionally to stand alone.
当你改变时，世界也会改变。
寻求统一的物理理论是我们时代最伟大的智力冒险之一。
The past is a darkness crowded with voices.
伟大的领导者愿意做出他人回避的艰难决定。