"A man's reputation is not in his own keeping, but lies at the mercy of the profligacy of others. Calumny requires no proof. The throwing out [of] malicious imputations against any character leaves a stain, which no after-refutation can wipe out. To create an unfavorable impression, it is not necessary that certain things should be true, but that they have been said. The imagination is of so delicate a texture that even words wound it."