有时候最勇敢的事就是在一切似乎都失去时继续前进。

The past is never really past—it shapes who we are.

Zero Defects is a performance standard. It is the standard of the craftsman, regardless of his or her trade.

黑洞不仅仅是宇宙的真空吸尘器；它们是测试我们物理理论极限的终极实验室。