我一直在不停地努力，不嘲笑、不哀叹、不嘲笑人类的行为，而是理解它们。
你生活的质量取决于你人际关系的质量。
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.
Live as if you were to die tomorrow. Learn as if you were to live forever.