> Acts, of whatever kind, which, without justifiable cause, do harm to others, may be, and in the more important cases absolutely require to be, controlled by the unfavourable sentiments, and, when needful, by the active interference of mankind.
The problem is that "nuisance" here is not considered to include speech. The whole section this is in is about how "human beings should be free to form opinions, and to express their opinions without reserve;"
And if you read further you will recognize this is not predicated on the speech being true.