It only remains to show that disputants on either side are apt to endow this test of relative inconceivability with far more than its real logical worth. Being accustomed to apply this test of truth in daily life, and there finding it a trustworthy test, most men are apt to forget that its value as a test must clearly diminish in proportion to the distance from experience at which it is applied. This, indeed, we saw to be the case even with the test of absolute inconceivability (see Chapter V.), but much more must it be the case with this test of relative inconceivability. For, without comment, it is manifest that our acquired sense of probability, as distinguished from our innate sense of possibility, with regard to any particular question of a transcendental nature, cannot be at all comparable with its value in the case of ordinary questions, with respect to which our sense of probability is being always rectified by external facts. Although, therefore, it is true that both those who reject and those who retain a belief in Theism on grounds of relative conceivability are equally entitled to be regarded as displaying a rational attitude of mind, in whatever degree either party considers their belief as of a higher validity than the grounds of psychology from which it takes its rise, in that degree must the members of that party be deemed irrational. In other words, not only must a man be careful not to confuse the test of relative inconceivability with that of absolute conceivability--not to suppose that his sense of probability in this matter is determined by an innate psychological inability to conceive a proposition, when in reality it is only determined by the difficulty of dissociating ideas which have long been habitually associated;--but he must also be careful to remember that the test of relative inconceivability in this matter is only valid as justifying a belief of the most diffident possible kind.