Now, as this is the case, I feel it incumbent upon me to advise all champions of a Reason that perceives, comprehends, and knows directly--in short, that supplies material knowledge out of its own resources--to read, as something new to them, the _First Book_ of Locke's work, which has been celebrated throughout the world for the last hundred and fifty years, and in it especially to peruse §§ 21-26 of the Third Chapter, expressly directed against all innate notions. For although Locke goes too far in denying all innate truths, inasmuch as he extends his denial even to our _formal_ knowledge--a point in which he has been brilliantly rectified by Kant--he is nevertheless perfectly and undeniably right with reference to all _material_ knowledge: that is, all knowledge which gives substance. I have already said in my Ethics what I must nevertheless repeat here, because, as the Spanish proverb says, "_No hay peor sordo que quien no quiere oir_" (None so deaf as those who will not hear): namely, that if Reason were a faculty specially designed for Metaphysics, a faculty which supplied the material of knowledge and could reveal that which transcends all possible experience, the same harmony would necessarily reign between men on metaphysical and religious subjects--for they are identical--as on mathematical ones, and those who differed in opinion from the rest would simply be looked upon as not quite right in their mind. Now exactly the contrary takes place, for on no subject are men so completely at variance with one another as upon these. Ever since men first began to think, philosophical systems have opposed and combated each other everywhere; they are, in fact, often diametrically contrary to one another. Ever since men first began to believe (which is still longer), religions have fought against one another with fire and sword, with excommunication and cannons. But in times when faith was most ardent, it was not the lunatic asylum, but the Inquisition, with all its paraphernalia, which awaited individual heretics. Here again, therefore, experience flatly and categorically contradicts the false assertion, that Reason is a faculty for direct metaphysical knowledge, or, to speak more clearly, of inspiration from above. Surely it is high time that severe judgment should be passed upon this Reason, since, _horribile dictu_, so lame, so palpable a falsehood continues after half a century to be hawked about all over Germany, wandering year by year from the professors' chair to the students' bench, and from bench to chair, and has actually found a few simpletons, even in France, willing to believe in it, and carry it about in that country also. Here, however, French _bon-sens_ will very soon send _la raison transcendentale_ about its business.