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 exhausting. Some respite will therefore ensue upon pain, but no magic cure. Madness, in like manner, if pronounced, is precarious, but when speculative enough to be harmless or not strong enough to be debilitating, it too may last for ever.

An imaginative life may therefore exist parasitically in a man, hardly touching his action or environment. There is no possibility of exorcising these apparitions by their own power. A nightmare does not dispel itself; it endures until the organic strain which caused it is relaxed either by natural exhaustion or by some external influence. Therefore human ideas are still for the most part sensuous and trivial, shifting with the chance currents of the brain, and representing nothing, so to speak, but personal temperature. Personal temperature, moreover, is sometimes tropical. There are brains like a South American jungle, as there are others like an Arabian desert, strewn with nothing but bones. While a passionate sultriness prevails in the mind there is no end to its luxuriance. Languages intricately articulate, flaming mythologies, metaphysical perspectives lost in infinity, arise in remarkable profusion. In time, however, there comes a change of climate and the whole forest disappears.

It is easy, from the stand-point of acquired practical competence, to deride a merely imaginative life. Derision, however, is not interpretation, and