Alas! how difficult it is not to betray one's guilt by one's looks.

Alas! how difficult it is not to betray one's guilt by one's looks.

唉!从一个人的外表看不出他有罪是多么困难啊。

-- Publius Ovidius Naso (Ovid) 奥维迪乌斯纳索（奥维德）