任何人都能成为历史，只有伟人能创造历史。

Interest is the first and most important ingredient in the recipe for grit.

The biggest barrier to change isn't technology; it's the fear of leaving the familiar behind.

The stranger is close to us, insofar as we feel between him and ourselves common features of a national, social, occupational, or generally human, nature. He is far from us, insofar as these common features extend beyond him or us, and connect us only because they connect a great many people.

没有人民的普遍知识，自由就无法得到保障。

每一个超限的一致多重性，即每一个超限集合，必须有一个确定的阿列夫作为其基数。