It refers to that period that Plato says in the letter looked like

它处在柏拉图信中所说的"黄金时代
"a golden age, when many things seemed possible."

很多事情都还可能的时代"
That brings us back to the opening, the descent to the Piraeus.

这就把我们带到了开篇来到了比雷埃夫斯
The action of the dialogue begins at the Piraeus, the port city of Athens,

对话开始在比雷埃夫斯雅典的一个港口城市
somewhere around the year 411, during what was called the Peace of Nicias,

大约是在公元前411年处在所谓的尼西亚斯和平时期
that is to say, the peace that endured a kind of respite,

也就是说这和平是一种缓解
truce that was established

是在斯巴达和雅典的战争之间
during the fighting between Sparta and Athens.

所建立的停战关系
At the very beginning of the dialogue,

在对话的一开始
we see Socrates and his friend Glaucon.

我们看到的是苏格拉底和他的朋友格劳孔
What are they doing?

他们在做什么
What are they doing?

他们在做什么