理性统治，但仁慈宽恕：前者是法律，后者是特权。
Reason to rule, but mercy to forgive: the first is law, the last prerogative.
The stars near the galactic center are like cosmic clocks, helping us map spacetime.
Television is at its most trivial when it tries to instruct.
The galactic center is a unique natural experiment in strong gravity.
The greatest hazard of all, losing one’s self, can occur very quietly in the world, as if it were nothing at all.
我不喜欢压力。我喜欢买一些东西，然后忘记它们。