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.
The best science is done with both hands dirty and minds clear.
重要的事情往往难以启齿,因为言语会缩小其重要性;要让素未平生的人在意你生命中的美好事物,原本就不容易。