It was the turtle shell which the Mute Singer used as a beggar's cup for money.

VOA: special.2011.02.19

And in his role here as a mute, as an infant, Christ is serving, I think, an important function for Milton.

作为一个哑巴，一个婴儿，基督对，弥尔顿起了很重要的作用。

耶鲁公开课 - 弥尔顿课程节选

So what we think we know derives chiefly from archeological evidence, which is before writing--mute evidence that has to be interpreted and is very complicated, and is far from secure.

我们目前所认为的史实,主要都是从考古证据中所得,这些无声的证据出现于文字记录之前,因此就需要繁复的考证及解读,这些考证未必可靠

耶鲁公开课 - 古希腊历史简介课程节选