If I had said, “When I told him that the train was leaving at 3.30, believing that it did, nothing happened than that I just uttered the sentence”, and if someone contradicted me saying, “Surely this couldn't have been all, as you might ‘just say a sentence’ without believing it”, – – my answer should be, “I didn't wish to say that there is || was no difference between speaking, believing what you say, and speaking, not believing what you say; but the pair ‘believing’::‘not believing’ refers to various differences in different cases (differences forming a family), not to one difference, that between the presence and the absence of a certain mental state.”