H. P. Grice quotes, to disagree from S. N. Hampshire and H. L. A. Hart, when they say that avowals and "such statements are NOT predictions is EVIDENT from the fact that if the agent does NOT act as he SAYS that he INTENDS to act, this exposes him, not to the criticism that what he said was FALSE, or that he was mistaken, but to the CHARGE that he CHANGED HIS MIND."