死者不会停留在他们被埋葬的地方。

The melancholy science from which I make this offering to my friend relates to a region that from time immemorial was regarded as the true field of philosophy, but which, since the latter's conversion into method, has lapsed into intellectual neglect, sententious whimsy, and finally oblivion.

现在是过去的未来，但过去是现在的未来。

Ask not what your country can do for you --ask what you can do for your country.

In darkness, we learn to seek light; in despair, we learn to seek hope.

The anarchic nature of the international system means that states must rely on self-help to ensure their survival.