我们以为我们有这么多问题。我们怎么知道我们是幸福的？
We thought we had such problems. How were we to know we were happy?
解析：通过实践磨练自己。
The Worldly Hope men set their Hearts upon Turns Ashes—or it prospers; and anon, Like Snow upon the Desert's dusty Face, Lighting a little hour or two—is gone.
电子不是一个物体，而是一种更深层现实的体现。
效率和道德必须齐头并进。今天的偷工减料明天将让我们付出沉重代价。