So the notion of a knowledge still _in transitu_ and on its way joins hands here with that notion of a 'pure experience' which I tried to explain in my [essay] entitled 'Does Consciousness Exist?' The instant field of the present is always experience in its 'pure' state, plain unqualified actuality, a simple _that_, as yet undifferentiated into thing and thought, and only virtually classifiable as objective fact or as some one's opinion about fact. This is as true when the field is conceptual as when it is perceptual. 'Memorial Hall' is 'there' in my idea as much as when I stand before it. I proceed to act on its account in either case. Only in the later experience that supersedes the present one is this _naïf_ immediacy retrospectively split into two parts, a 'consciousness' and its 'content,' and the content corrected or confirmed. While still pure, or present, any experience--mine, for example, of what I write about in these very lines--passes for 'truth.' The morrow may reduce it to 'opinion.' The transcendentalist in all his particular knowledges is as liable to this reduction as I am: his Absolute does not save him. Why, then, need he quarrel with an account of knowing that merely leaves it liable to this inevitable condition? Why insist that knowing is a static relation out of time when it practically seems so much a function of our active life? For a thing to be valid, says Lotze, is the same as to make itself valid. When the whole universe seems only to be making itself valid and to be still incomplete (else why its ceaseless changing?) why, of all things, should knowing be exempt? Why should it not be making itself valid like everything else? That some parts of it may be already valid or verified beyond dispute, the empirical philosopher, of course, like any one else, may always hope. VI. THE CONTERMINOUSNESS OF DIFFERENT MINDS[37] With transition and prospect thus enthroned in pure experience, it is impossible to subscribe to the idealism of the English school. Radical empiricism has, in fact, more affinities with natural realism than with the views of Berkeley or of Mill, and this can be easily shown. For the Berkeleyan school, ideas (the verbal equivalent of what I term experiences) are discontinuous. The content of each is wholly immanent, and there are no transitions with which they are consubstantial and through which their beings may unite. Your Memorial Hall and mine, even when both are percepts, are wholly out of connection with each other. Our lives are a congeries of solipsisms, out of which in strict logic only a God could compose a universe even of discourse. No dynamic currents run between my objects and your objects. Never can our minds meet in the _same_.