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 without impropriety, that the one possesses more or less inner sense, than the other. This more or less betrays already, that philosophy in its first principles must have a practical or moral, as well as a theoretical or speculative side. This difference in degree does not exist in the mathematics. Socrates in Plato shows, that an ignorant slave may be brought to understand and of himself to solve the most difficult geometrical problem. Socrates drew the figures for the slave in the sand. The disciples of the critical philosophy could likewise (as was indeed actually done by and some other followers of Des Cartes) represent the origin of our representations in copperplates; but no one has yet attempted it, and it would be utterly useless. To an Esquimaux or New Zealander our most popular philosophy would be wholly unintelligible. The sense, the inward organ, for it is not yet born in him. So is there many a one among us, yes, and some who think themselves philosophers too, to whom the philosophic organ is entirely wanting. To such a man, philosophy is a mere play of words and notions, like a theory of music to the deaf, or like the geometry of light to the blind. The connection of the parts and their logical dependencies may be seen and remembered; but the whole is groundless and hollow, unsustained by living contact, un-