天文学的历史是一部视野不断扩展的历史。

The only thing we have to fear is fear itself.

The man who is anybody and who does anything is surely going to be criticized, vilified, and misunderstood.

我的心因为爱情的痛楚要胀裂开来。

To be a philosopher is not merely to have subtle thoughts, nor even to found a school, but so to love wisdom as to live according to its dictates.

——1996年5月29日在哈佛大学演讲

"الحب هو أن تعطي دون أن تنتظر أي شيء في المقابل."