归根结底，哲学是理论领域的阶级斗争。

The evidence seems to favor the view that the fundamental structure of the virus is a hollow tube.

阅读是在不离开原地的情况下发现新的视野。

"A great book is a great adventure."

如果你不冒险，你将永远为那些敢于冒险的人工作。