理论物理学对物理学家而言，就像望远镜对天文学家一样重要。

在以色列，要成为一个现实主义者，你必须相信奇迹。

You are too generous to trifle with me. If your feelings are still what they were last April, tell me so at once. My affections and wishes are unchanged, but one word from you will silence me on this subject for ever.

看见先于言语。孩子在能说话之前就已经在看和辨认了。

今天对自由民主最严重的威胁不是来自外部，而是来自内部。