Calumniae non temere credundum

The engines that they use against the hearer are deceit, lying, perjury, insistence, impudence, and a thousand other unprincipled means; but the most important of all is flattery, a bosom friend, yes, an own sister to slander. Nobody is so high-minded and has a soul so well protected by walls of adamant that he cannot succumb to the assaults of flattery, especially when he is being undermined and his foundations sapped by slander.