It was like any attitude or action that reveals a person’s deep and hidden character: it has no connection with anything he has said before, we cannot seek confirmation from the culprit’s testimony for he will not confess; we are reduced to the testimony of our own senses concerning which we wonder, confronting this isolated and incoherent memory, if they were not the victims of an illusion; so that these attitudes, the only ones of any importance, often leave us with some doubts.