We don't inherit the ocean from our ancestors; we borrow it from our children.
We are all alone, born alone, die alone, and—in spite of True Romance magazines—we shall all someday look back on our lives and see that, in spite of our company, we were alone the whole way.
正该来时，先生（老子）应时来到这世间；正该去时，先生顺时离开这世间。安于时势，顺应自然规律，哀乐就不能进入心中。