唯一真正的知识是自我认知。
The only real knowledge is self-knowledge.
为了知识本身而追求知识,对正义的近乎狂热的热爱,以及对个人独立的渴望——这些是犹太传统的特征,让我感谢命运让我属于它。
软件一直处于紧张状态。具有象征意义是任意完美的。但它也可以任意更改。
My mind is my weapon. My brother has his sword, King Robert has his warhammer, and I have my mind... And a mind needs books as a sword needs a whetstone, if it is to keep its edge.
——〈民权主义第五讲〉,1924年4月20日