to us, like the mirage to travellers in the desert, for a time an illusive and disappointing thing? Still let us persevere in the pursuit. The natural mirage is often the most benign provision which Heaven, in its mercy, could call up before the eyes of the wanderers through barren wastes. Ceaselessly holding out to them the promise of blessed gratification, it thus attracts onwards and onwards, till at length they really reach the true and water-flowing oasis, those steps which, but for this timely and continual attraction, would have sunk down and perished in despair amid the unmeasurable sands. And spread over the surface of common life there is a moral mirage analogous to this, and equally attractive to the philosopher thirsting after truth. In pursuing it we may be often disappointed and at fault, but let us follow it in faithful hope, and it will lead us on and on unto the true and living waters at last. If we accept in a sincere and faithful spirit the facts and expressions of common sense, and refrain from tampering unduly with their simplicity, we shall perhaps find, like those fortunate ones of old who, opening hospitable doors to poor wearied wayfarers, unwittingly entertained angels, that we are harbouring the divinest truths of philosophy in the guise of these homely symbols.
It is comparatively an easy task to exclude such facts and such expressions from our consideration, and then within closed doors to arrive at conclusions at variance with common sense. But this is not the true business of philosophy. True philosophy, medi-
