Such is the outline of the question I propose to deal with. I will now show why it is so pressing, and why, in the present crisis of thought, it is so needful that it should be dealt with. The first impression it produces, as I have said, is that it is superfluous. Our belief in life seems to rest on too wide an experience for us to entertain any genuine doubt of the truth of it. But this first impression does not go for much. It is a mere superficial thing, and will wear off immediately. We have but to remember that a belief that was supposed to rest on an equally wide basis--the belief in God, and in a supernatural order--has in these days, not been questioned only, but has been to a great degree, successfully annihilated. The only philosophy that belongs to the present age, the only philosophy that is a really new agent in progress, has declared this belief to be a dissolving dream of the past. And this belief, as we shall see presently, is, amongst civilized men at least, far older than the belief in life; it has been far more widely spread, and experience has been held to confirm it with an equal certainty. If this then is inevitably disintegrated by the action of a widening knowledge, it cannot be taken for granted that the belief in life will not fare likewise. It may do so; but until we have examined it more closely we cannot be certain that it will. Common consent and experience, until they are analysed, are fallacious tests for the seekers after positive truth. The emotions may forbid us to ask our question; but in modern philosophy the emotions play no part as organs of discovery. They are facts in themselves, and as such are of course of value; but they point to no facts beyond themselves. That men loved God and felt his presence close to them proves nothing, to the positive thinker, as to God's existence. Nor will the mere emotion of reverence towards life necessarily go any farther towards proving that it deserves reverence. It is distinctly asserted by the modern school that the right state in which to approach everything is a state of enlightened scepticism. We are to consider everything doubtful, until it is proved certain, or unless, from its very nature, it is not possible to doubt it.