The study of black holes has led us to the edge of our understanding, where the known laws of physics break down and new theories must emerge.

数学家的工作永远不会真正完成；总有更多的东西需要探索。

It seems to me that if you or I must choose between two courses of thought or action, we should remember our dying and try so to live that our death brings no pleasure to the world.

Silence is the language of the soul.

企业竞争的本质是人才竞争。

解释：手指粗于胳膊， 胳膊粗于大腿， 病情必然很重。