"I am free, no matter what rules surround me. If I find them tolerable, I tolerate them; if I find them too obnoxious, I break them. I am free because I know that I alone am morally responsible for everything I do."

"The past is never truly past; it lives in our stories and in our bones."

必须有出世者的宽广胸怀，才能入世；否则的话，很容易受到尘世的各种利诱纠缠而使自己迅速堕落；必须有入世者的深刻体验，才能出世；否则的话，很容易变得空虚无聊而使自己难以把持人生。

人生的意义在于追求真理和美德。

信息悖论是理论物理学中最深的谜题之一。