The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

唯一真正的歌是心灵之歌。

成功的关键是专注于目标，而不是障碍。

在科学中，没有所谓的最终答案。