The doctrine set forth in the earlier chapters of this volume maintains that we must accept as our material the revelation of the mind and the world which seems to be made in our common experience, and which is extended and systematized in the sciences. But it insists that we must regard such an acceptance as merely provisional, must subject our concepts to a careful criticism, and must always be on our guard against hasty assumptions.

It emphasizes the value of the light which historical study casts upon the real meaning of the concepts which we all use and must use, but which have so often proved to be stones of stumbling in the path of those who have employed them. Its watchword is analysis, always analysis; and a settled distrust of what have so often passed as "self-evident" truths. It regards it as its task to analyze experience, while maintaining that only the satisfactory carrying out of such an analysis can reveal what experience really is, and clear our notions of it from misinterpretations.

No such attempt to give an account of experience can be regarded as fundamentally new in its method. Every philosopher, in his own way, criticises experience, and seeks its interpretation. But one may, warned by the example of one's predecessors, lay emphasis upon the danger of half-analyses and hasty assumptions, and counsel the observance of sobriety and caution.

For convenience, I have called the doctrine Critical Empiricism. I warn the reader against the seductive title, and advise him not to allow it to influence him unduly in his judgment of the doctrine.

64. PRAGMATISM.—It seems right that I should, before closing this chapter, say a few words about Pragmatism, which has been so much discussed in the last few years.

In 1878 Mr. Charles S. Peirce wrote an article for the Popular Science Monthly in which he proposed as a maxim for the attainment of clearness of apprehension the following: "Consider what effects, which might conceivably have practical bearings, we conceive the object of our conception to have. Then, our conception of these effects is the whole of our conception of the object."

This thought has been taken up by others and given a development which Mr. Peirce regards with some suspicion. He refers[4] especially to the development it has received at the hands of Professor William James, in his two essays, "The Will to Believe" and "Philosophical Conceptions and Practical Results." [5] Professor James is often regarded as foremost among the pragmatists.

I shall not attempt to define pragmatism, for I do not believe that the doctrine has yet attained to that definiteness of formulation which warrants a definition. We seem to have to do not so much with a clear-cut doctrine, the limits and consequences of which have been worked out in detail, as with a tendency which makes itself apparent in the works of various writers under somewhat different forms.

I may roughly describe it as the tendency to take that to be true which is useful or serviceable. It is well illustrated in the two essays to which reference is made above.

Thus, Professor James dwells upon the unsatisfactoriness and uncertainty of philosophical and scientific knowledge: "Objective evidence and certitude are doubtless very fine ideals to play with, but where on this moonlit and dream-visited planet are they found?"