美洲的历史是如此超乎寻常的现实，以至于看起来像是虚构的。

The interplay between quantum mechanics and general relativity is one of the most profound puzzles in modern physics, and solving it may require a complete rethinking of our understanding of the universe.

我所思念的美人，她在泰山。想追随她，但泰山支脉艰险。侧身东望，眼泪沾湿了衣襟。

No wise pilot, no matter how great his talent and experience, fails to use a checklist.

不要用战术的勤奋掩盖战略的懒惰。