With the view of securing a dispassionate consideration of this subject, and of avoiding all confusion, I have laid no stress upon the charge of immorality that is so often brought against Materialism. The reproach, even when made sincerely, is constantly belied by experience, indeed it is inconsistent with all that we know of human nature. Our opinions, whether right or wrong, have not, fortunately, the absolute power over our feelings and conduct which is commonly attributed to them. Materialism has been provisionally connected with the whole movement of emancipation, and it has therefore often been found in common with the noblest aspirations. That connexion, however, has now ceased; and it must be owned that even in the most favourable cases this error, purely intellectual though it be, has to a certain extent always checked the free play of our nobler instincts, by leading men to ignore or misconceive moral phenomena, which were left unexplained by its crude hypothesis. Cabanis gave a striking example of this tendency in his unfortunate attack upon mediaeval chivalry.[3] Cabanis was a philosopher whose moral nature was as pure and sympathetic as his intellect was elevated and enlarged. Yet the materialism of his day had entirely blinded him to the beneficial results of the attempts made by the most energetic of our ancestors to institute the Worship of Woman. We have now examined the two principal charges brought against the Positive system, and we have found that they apply merely to the unsystematic state in which Positive principles are first introduced. But the system is also accused of Fatalism and of Optimism; charges on which it will not be necessary to dwell at great length, because, though frequently made, they are not difficult to refute. [Nor is Positivism fatalist, since it asserts the External Order to be modifiable]