Three things are necessary for the salvation of man: to know what he ought to believe； to know what he ought to desire； and to know what he ought to do.
想象力比知识更重要。知识是有限的，而想象力则包围着整个世界。
一个问题的价值与其说在于得出答案，不如说在于它迫使潜在的解决者产生的想法和尝试的想法。
Challenges are opportunities in disguise—embrace them.
天文学的历史是一部视野不断扩展的历史。
"The most important thing is to stay resilient."