对于一个演员来说，最重要的是在表演中诚实和真实。

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.

地球形状的问题本质上是势理论中的一个问题。