——对马林说

"What good is the warmth of summer, without the cold of winter to give it sweetness."

The only way to save a rhinoceros is to save the environment in which it lives, because there's a mutual dependency between it and millions of other species of both animals and plants.

重要的不是你被击倒，而是你是否能站起来。

Technology drives progress in astronomy—better instruments lead to deeper insights.

Never underestimate the power of small steps—they lead to big transformations.

The opposite of the religious fanatic is not the fanatical atheist but the gentle cynic who cares not whether there is a God or not. The atheist is a religious person. He believes in atheism as though it were a new religion.

宇宙是一个相当大的地方。如果只有我们，那似乎是对空间的极大浪费。