again after some mechanical explanation. His "world forming reason" serves him only as a first impulse, only as a moving power. It is to him a Deus ex machina. Notwithstanding, therefore, his glimpse of something higher than matter, yet was Anaxagoras only a physical philosopher, like his predecessors Mind had not yet appeared to him as a true force above nature, as an organizing soul of the universe.

7. It is, therefore, a farther progress in thought, to comprehend accurately the distinction between mind and nature, and to recognize mind as something higher and contra-distinguished from all natural being. This problem fell to the Sophists. They entangled in contradictions, the thinking which had been confined to the object, to that which was given, and gave to the objectivo world which had before been exalted above the subject, a subordinate position in the dawning and yet infantile consciousness of the superiority of subjective thinking. The Sophists carried their principle of subjectivity, though at first this was only nega. tive, into the form of the universal religious and political chang ing condition (Aufklärung).* They stood forth as the destroy ers of the whole edifice of thought that had been thus far built until Socrates appeared, and set up against this principle of empirical subjectivity, that of the absolute subjectivity,—that of the spirit in the form of a free moral will, and the thought is positively considered as something higher than existence, as the truth of all reality. With the Sophist closes our first period, for with these the oldest philosophy finds its self-destruction (Selbstauflösung).

* This word literally means clearing up, but has a philosophical sense for which no precise equivalent is found in the English language. When used physically, it denotes that every obstruction which prevented the clear sight of the bodily eye is removed, and when used psychologically it implies the same fact in reference to our mental vision. The Aufklärung in philoscphy is hence the clearing up of difficulties which have hindered a true philosophical insight. To express this, I know of no better word than the literal rendering, up-clearing" or "clearing up," which the reader will find adopted in the fol lowing pages.-TRANSLATOR.

SECTION IV.

THE IONIC PHILOSOPHERS.

1. THALES. At the head of the Ionic natural philosophers and therefore at the head of philosophy, the ancients are generally agreed in placing Thales of Miletus, a cotemporary of Croesus and Solon; although this beginning lies more in the region of tradition than of history. The philosophical principle to which he owes his place in the history of philosophy is, that, "the principle (the primal, the original ground) of all things is water; from water every thing arises and into water every thing returns." But simply to assume water as the original ground of things was not to advance beyond his myth-making predecessors and their cosmologies. Aristotle, himself, when speaking of Thales, refers to the old "theologians,"-meaning, doubtless, Homer and Hesiod, -who had ascribed to Oceanus and Tethys, the origin of all things. Thales, however, merits his place as the beginner of philosophy, because he made the first attempt to establish his physical principle, without resorting to a mythical representation, and, therefore, brought into philosophy a scientific procedure. He is the first who has placed his foot upon the ground of a logical (verständig) explanation of nature. We cannot now say with certainty, how he came to adopt his principle, though he might have been led to it, by perceiving that dampness belonged to the seed and nourishment of things; that warmth is developed from moisture; and that, generally, moisture might be the plastic, living and life-giving principle. From the condensation and expansion of this first principle, he derives, as it seems, the changes of things, though the way in which this is done, he has not accurately determined.

The philosophical significance of Thales does not appear to extend any farther. He was not a speculative philosopher after a later mode. Philosophical book-making was not at all the order

of his day, and he does not seem to have given any of his opinions a written form. On account of his ethico-political wisdom, he is numbered among the so-named "seven wise men," and the characteristics which the ancients furnish concerning him only testify to his practical understanding. He is said e. g. to have first calculated an eclipse of the sun, to have superintended the turning of the course of the Halys under Croesus, &c. When subsequent narrators relate that he had asserted the unity of the world, had set up the idea of a world-soul, and had taught the immortality of the soul and the personality of God, it is doubtless an unhistorical reference of later ideas to a stand-point, which was, as yet, far from being developed.

2. ANAXIMANDER.-Anaximander, sometimes represented by the ancients as a scholar and sometimes as a companion of Thales, but who was, at all events, younger than the latter, sought to carry out still farther his principles. The original essence which he assumed, and which he is said to have been the first to name principle (apxǹ), he defined as the "unlimited, eternal, and unconditioned," as that which embraced all things and ruled all things, and which, since it lay at the basis of all determinateness of the finite and the changeable, is itself infinite and undeterminate. How we are to regard this original essence of Anaximander is a matter of dispute. Evidently it was not one of the four common elements, though we must not, therefore, think it was something incorporeal and immaterial. Anaximander probably conceived it as the original matter before it had separated into determined elements,-as that which was first in the order of time, or what is in our day called the chemical indifference in the opposition of elements. In this respect his original essence is indeed "unlimited" and "undetermined," i. e. has no determination of quality nor limit of quantity, yet it is not, therefore, in any way, a pure dynamical principle, as perhaps the "friendship" and "enmity" of Empedocles might have been, but it was only a more philosophical expression for the same thought, which the old cosmogonies have attempted to utter in their representation of chaos. Accordingly, Anaximander suffers the original opposition

of cold and warm, of dry and moist (i. e. the basis of the four elements) to be secreted from his original essence, a clear proof that it was only the undeveloped, unanalyzed, potential being of these elemental opposites.

3. ANAXIMENES.-Anaximenes, who is called by some the scholar, and by others the companion of Anaximander, turned back more closely to the view of Thales, in that he made air as the principle of all things. The perception that air surrounds the whole world, and that breath conditions the activity of life, seems to have led him to his position.

4. RETROSPECT. The whole philosophy of the three Ionic sages may be reduced to these three points, viz:-(1.) They sought for the universal essence of concrete being; (2.) They found this essence in a material substance or substratum; (3.) They gave some intimation respecting the derivation of the ele ments from this original matter.

SECTION V.

PYTHAGOREANISM.

1. ITS RELATIVE POSITION.-The development of the Ionic philosophy discloses the tendency to abstract matter from all else; though they directed this process solely to the determined quality of matter. It is this abstraction carried to a higher step, when we look away from the sensible concretions of matter, and no more regard its qualitative determinateness as water, air, &c., but only direct our attention to its quantitative determinateness,-to its space-filling property. But the determinateness of quantity is number, and this is the principle and stand-point of Pythagoreanism.

2. HISTORICAL AND CHRONOLOGICAL.-The Pythagorean doc. trine of numbers is referred to Pythagoras of Samos, who is said to have flourished between 540 and 500 B. C. He dwelt in the

latter part of his life at Crotonia, in Magna Grecia, where he founded a society, or, more properly, an order, for the moral and political regeneration of the lower Italian cities. Through this society, this new direction of philosophy seems to have been introduced, though more as a mode of life than in the form of a scientific theory. What is related concerning the life of Pythagoras, his journeys, the new order which he founded, his political influence upon the lower Italian cities, &c., is so thoroughly interwoven with traditions, legends, and palpable fabrications, that we can be certain at no point that we stand upon a historical basis. Not only the old Pythagoreans, who have spoken of him, delighted in the mysterious and esoteric, but even his new-Platonistic biographers, Porphyry and Jamblichus, have treated his life as a historico-philosophical romance. We have the same uncertainty in reference to his doctrines, i. e. in reference to his share in the number-theory. Aristotle, e. g. does not ascribe this to Pythagoras himself, but only to the Pythagoreans generally, i. e. to their school. The accounts which are given respecting his school have no certainty till the time of Socrates, a hundred years after Pythagoras. Among the few sources of light which we have upon this subject, are the mention made in Plato's Phadon of the Pythagorean Philolaus and his doctrines, and the writings of Archytas, a cotemporary of Plato. We possess in fact the Pythagorean doctrine only in the manner in which it was taken up by Philolaus, Eurytas and Archytas, since its earlier adherents left nothing in a written form.

3. THE PYTHAGOREAN PRINCIPLE.-The ancients are united in affirming that the principle of the Pythagorean philosophy was number. But in what sense was this their principle—in a material or a formal sense? Did they hold number as the material of things, i. e. did they believe that things had their origin in numbers, or did they regard it as the archetype of things, i. e. did they believe that things were made as the copy or the representa tion of numbers? From this very point the accounts given by the ancients diverge, and even the expressions of Aristotle seem to contradict each other. At one time he speaks of Pythagorean