It is not an anticipated view of the solution, for then all would be at an end; nor is it a simple formula putting in the present indicative what the enunciation expressed in the future or the imperative, for then nothing would be begun. It is exactly a dynamic scheme; that is to say, a method in the state of directed tension; and often, the discovery once realised as theory or system, capable of unending developments and resurrections, remains by the best of itself a method and a dynamic scheme. But one last example will perhaps reveal the truth still more. "Anyone who has attempted literary composition knows well that when the subject has been long studied, all the documents collected, all the notes taken, we need, to embark on the actual work of composition, something more, an effort, often very painful, to place oneself suddenly in the very heart of the subject, and to seek as deep down as possible an impulse to which afterwards we shall only have to let ourselves go. This impulse, once received, projects the mind on a road where it finds both the information which it had collected and a thousand other details as well; it develops and analyses itself in terms, the enumeration of which would have no end; the further we advance, the more we discover; we shall never succeed in saying everything; and yet, if we turn sharply round towards the impulse we feel behind ourselves, to grasp it, it escapes; for it was not a thing but a direction of movement, and though indefinitely extensible, it is simplicity itself." (H. Bergson, "Metaphysical and Moral Review", January 1903. The whole critique of language is implicitly contained in this "Introduction to Metaphysics".) The thought, then, which proceeds from one representation to another in one and the same plane is one kind; that which follows one and the same conceptual direction through descending planes is another. Creative and fertile thought is the thought which adopts the second kind of work. The ideal is a continual oscillation from one plane to the other, a restless alternative of intuitive concentration and conceptual expansion. But our idleness takes exception to this, for the feeling of effort appears precisely in the traject from the dynamic scheme to the images and concepts, in the passing from one plane of thought to another. Thus the natural tendency is to remain in the last of these planes, that of language. We know what dangers threaten us there. Suppose we have some idea or other and the word representing it. Do not suppose that to this word there is one corresponding sense only, nor even a finished group of various distinct and rigorously separable senses. On the contrary, there is a whole scale corresponding, a complete continuous spectrum of unstable meanings which tend unceasingly to resolve into one another. Dictionaries attempt to illuminate them. The task is impossible. They co-ordinate a few guiding marks; but who shall say what infinite transitions underlie them?