Responsa su Salmi 66:27

[K]now, my son and student, that my whole life I have been troubled by the verse, “And you shall be clean in front of G-d and Israel,” and these two obligations we have to be clean from G-d and clean from Israel His nation are two paired riders on our backs. But it is much easier to fulfill the first obligation, meaning, [innocence] in the eyes of G-d, much, much more than to fulfill one’s obligation regarding people, for they think strange thoughts [suspicions of wrongdoing], and the weavers speak of them by moonlight. The punishment [for failure to be innocent in the eyes of humanity] is quite severe, to no end, more than one who does not fulfill his obligation to Heaven, G-d forbid. This emerges from the Talmud at the end of the chapter Yom HaKippurim (Yoma Chapter 8) regarding desecrating G-d’s Name, [which says] there is no atonement, “such as where a rabbi purchases meat but does not pay right away.” In our great iniquity, people commonly talk about how such a studious person did such and such. It is common in their mouths – even if it’s just a suspicion. And in this case, even if the studious person acted properly in the eyes of G-d as much as possible, but not carefully enough, such that some drunkards made a mistake about him, and wrote mocking songs about him, he has been caught in their trap. On this, all sufferers shall grieve, and the verse screams, “You have let men ride over us.” (Tehillim 66:12).