How different it is with the world which the natural sciences have created for us! However concrete the materials with which they started, the goal of these sciences is theories, eventually mathematical formulations of laws of change. Treating the individual, sensuous, changing objects as mere unsubstantial appearances (phenomena), scientific investigation becomes a search for the universal laws which rule the timeless changes of events. Out of this colorful world of the senses, science creates a system of abstract concepts, in which the true nature of things is conceived to exist--a world of colorless and soundless atoms, despoiled of all their earthly sensuous qualities. Such is the triumph of thought over perception. Indifferent to change, science casts her anchor in the eternal and unchangeable. Not the change as such but the unchanging form of change is what she seeks. This raises the question: What is the more valuable for the purposes of knowledge in general, a knowledge of law or a knowledge of events? As far as that is concerned, both scientific procedures may be equally justified. The knowledge of the universal laws has everywhere a practical value in so far as they make possible man's purposeful intervention in the natural processes. That is quite as true of the movements of the inner as of the outer world. In the latter case knowledge of nature's laws has made it possible to create those tools through which the control of mankind over external nature is steadily being extended. Not less for the purposes of the common life are we dependent upon the results of historical knowledge. Man is, to change the ancient form of the expression, the animal who has a history. His cultural life rests on the transmission from generation to generation of a constantly increasing body of historical memories. Whoever proposes to take an active part in this cultural process must have an understanding of history. Wherever the thread is once broken--as history itself proves--it must be painfully gathered up and knitted again into the historical fabric. It is, to be sure, true that it is an economy for human understanding to be able to reduce to a formula or a general concept the common characteristics of individuals. But the more man seeks to reduce facts to concepts and laws, the more he is obliged to sacrifice and neglect the individual. Men have, to be sure, sought, in characteristic modern fashion, "to make of history a natural science." This was the case with the so-called philosophy of history of positivism. What has been the net result of the laws of history which it has given us? A few trivial generalities which justify themselves only by the most careful consideration of their numerous exceptions.