fess to know the ultimate, i.e., the first ground of things, thus a primordial being, an absolute, or whatever else they choose to call it, together with the process, the reasons, motives, or whatever it may be, in consequence of which the world arises from it, or springs, or falls, or is produced, set in existence, "discharged," and ushered forth, are playing tricks, are vain boasters, when indeed they are not charlatans.
I regard it as a great excellence of my philosophy that all its truths have been found independently of each other, by contemplation of the real world; but their unity and agreement, about which I had been unconcerned, has always afterwards appeared of itself. Hence also it is rich, and has wide-spreading roots in the ground of perceptible reality, from which all nourishment of abstract truths springs; and hence, again, it is not wearisome – a quality which, to judge from the philosophical writings of the last fifty years, one might regard as essential to philosophy. If, on the other hand, all the doctrines of a philosophy are merely deduced the one out of the other, and ultimately indeed all out of one first principle, it must be poor and meagre, and consequently wearisome, for nothing can follow from a proposition except what it really already says itself. Moreover, in this case everything depends upon the correctness of one proposition, and by a single mistake in the deduction the truth of the whole would be endangered. Still less security is given by the systems which start from an intellectual intuition, i.e., a kind of ecstasy or clairvoyance. All knowledge so obtained must be rejected as subjective, individual, and consequently problematical. Even if it actually existed it would not be communicable, for only the normal knowledge of the brain is communicable; if it is abstract, through conceptions and words; if purely perceptible or concrete, through works of art.
If, as so often happens, metaphysics is reproached with having made so little progress, it ought also to be considered that no other science has grown up like it under
