If a judgment is valid for everyone, its ground is objectively sufficient and the holding of it is entitled conviction . If the ground of a judgment lies in the special character of the subject, it is entitled persuasion . Persuasion is mere illusion.
Truth depends on agreement with the object.
The judgments of every understanding must be in agreement with each other. The touchstone whereby we decide whether holding a thing to be true is conviction or persuasion is external. It must be possible to communicate it and find it valid for all human reason. There is at least a presumption that the ground of the agreement of all judgments with each other rests upon the object, which proves the truth of the judgment. Persuasion cannot be subjectively distinguished from conviction.