The historian is a prophet looking backwards.

The more determinedly I exist, as myself, within the conditions of the time, the more clearly I shall hear the language of the past, the nearer I shall feel the breath of the centuries.

It is love, not reason, that is stronger than death.

你可以非常爱一个人……但你永远无法像想念他们那样爱他们。

我从不回头看，我向前看。

数学的本质在于其自由性。