如何翻譯莎士比亞的「We are such stuff as dreams are made on」？

先看看前後文。

Our revels now are ended. These our actors,
As I foretold you, were all spirits and
Are melted into air, into thin air:
And, like the baseless fabric of this vision,
The cloud-capp"d towers, the gorgeous palaces,
The solemn temples, the great globe itself,
Yea, all which it inherit, shall dissolve
And, like this insubstantial pageant faded,
Leave not a rack behind. We are such stuff
As dreams are made on, and our little life
Is rounded with a sleep.

尤其是這加粗的一句，說明了感情的基調是強調虛無縹緲和如夢似幻，無需刻意留戀什麼，也無需為幻夢的消逝而焦燥不安。