我们发现的每一颗新行星都让我们更接近回答这个古老的问题：我们在宇宙中是孤独的吗？

The healthy social life is found when in the mirror of each human soul the whole community finds its reflection, and when in the community the virtue of each one is living.

"Writing is a way to make the invisible visible."

译文：学习、询问、思考、辨析、实践，都是做学问的方法，没有只学习而不实践的。

"We are all in the gutter, but some of us are looking at the stars."

We have a responsibility, every one of us. We may think we live a long way from the oceans, but we don't. What we actually do here, has a direct effect on the oceans—and what the oceans do then reflects back on us.

最伟大的实验始于一个简单的问题。