心理学的研究就是研究生活的策略。

计算机科学最深远的影响在于它能够民主化信息并赋予个人力量。

我认为科学具有极大的美。实验室里的科学家不仅是一名技术人员：他还是一个站在自然现象面前的孩子，这些现象对他来说就像童话一样令人印象深刻。

The power of causal reasoning is that it allows us to predict the effects of actions we have never taken.

——《北上宣言》，1924年11月

"We are all exiles from our childhoods."

Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them - and then, the opportunity to choose.