In respect of the fact that, according to Heraclitus, fire is the animating, or the soul, we find in Plutarch (De esu. carn. I. p. 995, ed. Xyl.) an expression which may seem odd, namely, that “the driest soul is the best.” We certainly do not esteem the most moist the best, but, on the other hand, the one which is most alive; however dry here signifies fiery and thus the driest soul is pure fire, and this is not lifeless but life itself. These are the principal moments of the real life-process; I will stop here a moment because we here find expressed the whole Notion of speculative reflection regarding Nature. In this Notion, one moment and one element goes over into the other; fire becomes water, water earth and fire. The contention about the transmutation and immutability of the elements is an old one; in this conception the ordinary, sensuous science of nature separates itself from natural philosophy. In the speculative point of view, which is that of Heraclitus, the simple substance in fire and the other elements in itself becomes metamorphosed; in the other, all transition is abolished and only an external separation of what is already there is maintained. Water is just water, fire is fire, &c. If the former point of view upholds transmutation, the latter believes in the possibility of demonstrating the opposite; it no longer, indeed, maintains water, fire, &c., to be simple realities, for it resolves them into hydrogen, oxygen, &c., but it asserts their immutability. It justly asserts that what is asserted and implied in the speculative point of view, must also have the truth of actuality; for if to be the speculative means to be the very nature and principle of its elements, this must likewise be present. We are wrong in representing the speculative to be something existent only in thought or inwardly, which is no one knows where. It is really present, but men of learning shut their eyes to it because of their limited point of view. If we listen to their account, they only observe and say what they see; but their observation is not true, for unconsciously they transform what is seen through their limited and stereotyped conception; the strife is not due to the opposition between observation and the absolute Notion, but between the one Notion and the other. They show that changes—such as that of water into earth—are non-existent. Even in modern times this transformation was indeed maintained, for when water was distilled, a residuum of earth was found. On this subject, however, Lavoisier carried on a number of very conclusive researches; he weighed all the receptacles, and it was shown that the residuum proceeded from the vessels. There is a superficial process that does not carry us beyond the determinate nature of substance. They say in reference to it, “water does not change into air but only into moisture, and moisture always condenses back into water again.” But in this they merely fix on a one-sided,