The distinction between the false Time and true Time may be regarded as a distinction between mathematical Time and living Time, or between abstract and concrete Time. This living, concrete Time is that true Time of which Bergson endeavours to give us a conception as la duree. He has criticized the abstract mathematical Time, his attack having been made to open up the way for a treatment of what he really considers Time to be. Now, from the arguments previously mentioned, it follows that Time, Real Time, which is radically different from space, cannot be any homogeneous medium. It is heterogeneous in character. We are aware of it in relation to ourselves, for it has reference not to the existence of a multiplicity of material objects in space, but to a multiplicity of a quite different nature, entirely non-spatial, viz., that of conscious states. Being non-spatial, such a multiplicity cannot be composed of elements which are external to one another as are the objects existing in space. States of consciousness are not in any way external to one another. Indeed, they interpenetrate to such a degree that even the use of the word "state" is apt to be misleading. As we saw in the chapter on The Reality of Change, there can be strictly no states of consciousness, for consciousness is not static but dynamic. Language and conventional figures of speech, of which the word "state" itself is a good example, serve to cut up consciousness artificially, but, in reality, it is, as William James termed it, "a stream" and herein lies the essence of Bergson's duree--the Real as opposed to the False Time. "Pure Duration" (la duree pure), he says, "is the form which the succession of our conscious states assumes when our Ego lets itself live, when it refrains from separating its present state from its former states. For this purpose, it need not be entirely absorbed in the passing sensation or idea, for then, on the contrary, it would no longer 'endure.' Nor need it forget its former states; it is enough that in recalling these states, it does not set them alongside its actual state as one point alongside another, but forms both the past and the present states into an organic whole, as happens when we recall the notes of a tune, melting, so to speak, into one another. Might it not be said that even if these notes succeed one another, yet, we perceive them in one another, and that their totality may be compared to a living being whose parts, although distinct, permeate one another just because they are so closely connected?" [Footnote: Time and Free Will, p. 100 (Fr. p. 76).] Such a duration is Real Time. Unfortunately, we, obsessed by the idea of space, introduce it unwittingly and set our states of consciousness side by side in such a way as to perceive them alongside one another; in a word, we project them into space and we express duree in terms of extensity and succession thus takes the form of a continuous line or a