Calumny is answered best with silence.

沉默可止谤。

Calumny require no proof.

诽谤无需证据。

On abuse, on reproach, on calumny, it is easy to smile; but painful indeed, is the panegyric of those we contemn.

面对谩骂、非难，中伤而一笑置之，那是容易的；可是，老实说，要藐视这些颂词却是需要费点儿力气的。