Here is a thinker whose name is today on everybody's lips, who is deemed by acknowledged philosophers worthy of comparison with the greatest, and who, with his pen as well as his brain, has overleapt all technical obstacles, and won himself a reading both outside and inside the schools. Beyond any doubt, and by common consent, Mr Henri Bergson's work will appear to future eyes among the most characteristic, fertile, and glorious of our era. It marks a never-to-be-forgotten date in history; it opens up a phase of metaphysical thought; it lays down a principle of development the limits of which are indeterminable; and it is after cool consideration, with full consciousness of the exact value of words, that we are able to pronounce the revolution which it effects equal in importance to that effected by Kant, or even by Socrates.