There is no rampart that will hold out against malice.
[Contre la médisance il n’est point de rempart.]
Molière (1622-1673) French playwright, actor [stage name for Jean-Baptiste Poquelin]
Tartuffe, Act 1, sc. 1, l. 99 (1664)
(Source)
Alt. trans.: "Against backbiting there is no bulwark."
