Metaphysical speculations run out into the philosophy of religion; and, on the other hand, religious emotions and ideals have again and again prompted men to metaphysical construction. A glance at history shows that it is natural to man to embrace some attitude toward the system of things, and to try to justify this by reasoning. Vigorous and independent minds have given birth to theories, and these have been adopted by others. The influence of such theories upon the evolution of humanity has been enormous.
Ideas have ruled and still rule the world, some of them very abstract ideas. It does not follow that one is uninfluenced by them, when one has no knowledge of their source or of their original setting. They become part of the intellectual heritage of us all, and we sometimes suppose that we are responsible for them ourselves. Has not the fact that an idealistic or a materialistic type of thought has been current at a particular time influenced the outlook on life of many who have themselves devoted little attention to philosophy? It would be interesting to know how many, to whom Spencer is but a name, have felt the influence of the agnosticism of which he was the apostle.
I say this without meaning to criticise here any of the types of doctrine referred to. My thesis is only that philosophy and life go hand in hand, and that the prying into the deeper mysteries of the universe cannot be regarded as a matter of no practical moment. Its importance ought to be admitted even by the man who has little hope that he will himself be able to attain to a doctrine wholly satisfactory and wholly unshakable.
For, if the study of the problems of metaphysics does nothing else for a given individual, it, at least, enables him to comprehend and criticise intelligently the doctrines which are presented for his acceptance by others. It is a painful thing to feel quite helpless in the face of plausible reasonings which may threaten to rob us of our most cherished hopes, or may tend to persuade us of the vanity of what we have been accustomed to regard as of highest worth. If we are quite unskilled in the examination of such doctrines, we may be captured by the loosest of arguments—witness the influence of Spencer's argument for the "Unknowable," in the "First Principles"; and if we are ignorant of the history of speculative thought, we may be carried away by old and exploded notions which pose as modern and impressive only because they have been given a modern dress.
We can, of course, refuse to listen to those who would talk with us. But this savors of bigotry, and the world will certainly not grow wiser, if men generally cultivate a blind adherence to the opinions in which they happen to be brought up. A cautious conservatism is one thing, and blind obstinacy is another. To the educated man (and it is probable that others will have to depend on opinions taken at second hand) a better way of avoiding error is open.
Finally, it will not do to overlook the broadening influence of such studies as we are discussing. How dogmatically men are in the habit of expressing themselves upon those obscure and difficult problems which deal with matters that lie on the confines of human knowledge! Such an assumption of knowledge cannot but make us uncomprehending and unsympathetic.
There are many subjects upon which, if we hold an opinion at all, we should hold it tentatively, waiting for more light, and retaining a willingness to be enlightened. Many a bitter and fruitless quarrel might be avoided, if more persons found it possible to maintain this philosophical attitude of mind. Philosophy is, after all, reflection, and the reflective man must realize that he is probably as liable to error as are other men. He is not infallible, nor has the limit of human knowledge been attained in his day and generation. He who realizes this will not assume that his neighbor is always wrong, and he will come to have that wide, conscientious tolerance, which is not indifference, but which is at the farthest remove from the zeal of mere bigotry.
CHAPTER XXIII
WHY WE SHOULD STUDY THE HISTORY OF PHILOSOPHY
83. THE PROMINENCE GIVEN TO THE SUBJECT.—When one reflects upon the number of lecture courses given every year at our universities and colleges on the history of philosophy, one is struck by the fact that philosophy is not treated as are most other subjects with which the student is brought into contact.