When criticizing the errors of others, the distinguished author reasons as an ontologist, but when developing his own system, he is almost a psychologist. His ontology is usually sound, indeed, and his conclusions are for the most part just, but not always logically obtained. He recognizes no philosophical formula which embraces the whole subject-matter of philosophy, and does not appear to be aware that the _primum philosophicum_ is and must be a synthesis; and hence he falls into what we may call, not eclecticism, but syncretism. This is owing to the fact that his genius is critical rather than constructive, and more apt to demolish than to build up. What I regard as the chief error of the illustrious Spaniard, is his not recognizing that conceptions without intuitions are, as Kant justly maintains, empty, purely subjective, the mind itself; and hence, while denying that we have intuition of the infinite, contending that we have a real and objectively valid conception of it. Throughout his book the reader will find him maintaining that the human mind may, by discursion, attain to valid conceptions of a reality which transcends intuition. This I regard as an error. Discursion is an act of reflection, and though there is always less there can never be more in reflection than in intuition. If we have no intuition of the infinite, we have and can have no proper conception of it, and what is taken to be a conception of it is simply the human mind itself, and of no objective application or validity. The excellent author is misled on this point, by supposing that in intuition of the intelligible the mind is the actor and not simply the spectator, and that an intuition of the infinite implies an infinite intuition. In both cases he is mistaken. In intuition we are simply spectators, and the object affirms itself to us. In intuition of the infinite, it is not we who perceive and affirm the infinite, by our own intellectual act, but the infinite that reveals and affirms itself to our intellect. In apprehending the infinite as thus revealed and affirmed, we of course apprehend it in a finite, not in an infinite manner. That which is intuitively apprehended is infinite, but the subjective apprehension is finite. The limitation is on the part of the subject, not on the part of the object.