Bergson remarking: On mesure la portee d'une doctrine philosophique a la variete des idees ou elle s'epanouit et a la symplicite du principe ou elle se ramasse. This remark may serve us as a criterion in surveying his own work. The preceding exposition of his thought is a sufficient indication of the wealth of ideas expressed. Bergson is most suggestive. Moreover, no philosopher has been so steeped in the knowledge of both Mind and Matter, no thinker has been at once so "empirical" and so "spiritual." His thought ranges from subtle psychological analyses and minute biological facts to the work of artists and poets, all-embracing in its attempt to portray Life and make manifest to us the reality of Time and of Change. His insistence on Change is directed to showing that it is the supreme reality, and on Time to demonstrating that it is the stuff of which things are made. He is right in attacking the false conception of Time, and putting before us la duree as more real; right, too, in attacking the notion of empty eternity. But although Change and Development may be the fundamental feature of reality, Bergson does not convincingly show that it is literally THE Reality, nor do we think that this can be shown. He does not admit that there is any THING that changes or endures; he is the modern Heraclitus; all teaching which savours of the Parmenidean "one" he opposes. Yet it would seem that these two old conceptions may be capable of a reconciliation and that if all reality is change, there is a complementary principle that Change implies something permanent. Then, again, we feel Bergson is right in exposing the errors which the "idea of the line," the trespassing of space, causes; but he comes very near to denying, in his statements regarding duree pure, any knowledge of the past as past; he overlooks the decisive difference between the "no more" and the "not yet" feeling of the child's consciousness, which is the germ of our clear knowledge of the past as past, and distinct from the future.