The concept of will is unnecessary in explaining behavior.

"O escritor é um eterno insatisfeito, sempre em busca da palavra perfeita."

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

A legal system is a system of rules which are valid according to the system's own criteria of validity.

选择理论忽略了我们对人类的大部分了解。它们忽略了人类常常感到困惑，常常不知道自己想要什么，常常出于习惯或冲动而非经过计算的自身利益行事。