particular experience? This is the characteristic English way of taking up a question. In this way, you remember, Locke takes up the question of personal identity. What you mean by it is just your chain of particular memories, says he. That is the only concretely verifiable part of its significance. All further ideas about it, such as the oneness or manyness of the spiritual substance on which it is based, are therefore void of intelligible meaning; and propositions touching such ideas may be indifferently affirmed or denied. So Berkeley with his “matter.” The cash-value of matter is our physical sensations. That is what it is known as, all that we concretely verify of its conception. That, therefore, is the whole meaning of the term “matter”—any other pretended meaning is mere wind of words. Hume does the same thing with causation. It is known as habitual antecedence, and as tendency on our part to look for something definite to come. Apart from this practical meaning it has no significance whatever, and books about it may be committed to the flames, says Hume. Dugald Stewart and Thomas Brown, James Mill, John Mill, and Professor Bain, have followed more or less consistently the same method; and Shadworth Hodgson has used the principle with full explicitness. When all is said and done, it was English and Scotch writers, and not Kant, who introduced “the critical method” into philosophy, the one method fitted to make philosophy a study worthy of serious men. For what seriousness can possibly remain in debating philosophic propositions that will never make an appreciable difference to us in action? And what could it matter, if all propositions were practically indifferent, which of them we should agree to call true or which false?
An American philosopher of eminent originality, Mr. Charles Sanders Peirce, has rendered thought a service by disentangling from the particulars of its application the principle by which these men were instinctively guided, and by singling it out as fundamental and giving to it a Greek name. He calls it the principle of pragmatism , and he defends it somewhat as follows: —