成为质量的标杆。有些人不习惯在一个期望卓越的环境中工作。
Be a yardstick of quality.Some people aren’t used to an environment where excellence is expected.
Black holes are not just destructive monsters; they play a crucial role in shaping galaxies.
我们必须记住，(地球)这是一颗非常小的恒星，可能还有一些更大、更重要的恒星，可能是非常虚拟和快乐的（更适合人类居住？）。
It is a first principle of human action that a man does what he believes will satisfy his desires.