And fourthly, sleep. On the average, about a third of our time is not spent in society or civilization or even in what is usually called solitude. We enter a world of which little is known and which seems to us after leaving it to have been partly oblivion, partly a caricature of this world and partly a revelation. "I dreamt of nothing" or "I dreamt of a ladder" or "I dreamt of heaven" we say when we wake. I do not want to discuss the nature of sleep and dreams—only to point out that they occupy much time and that what is called "History" only busies itself with about two-thirds of the human cycle, and theorizes accordingly. Does fiction take up a similar attitude?

And lastly, love. I am using this celebrated word in its widest and dullest sense. Let me be very dry and brief about sex in the first place. Some years after a human being is born, certain changes occur in it, as in other animals, which changes often lead to union with another human being, and to the production of more human beings. And our race goes on. Sex begins before adolescence, and survives sterility; it is indeed coeval with our lives, although at the mating age its effects are more obvious to society. And besides sex, there are other emotions, also strengthening towards maturity: the various upliftings of the spirit, such as affection, friendship, patriotism, mysticism—and as soon as we try to determine the relation between sex and these other emotions we shall of course begin to quarrel as violently as we ever could about Walter Scott, perhaps even more violently. Let me only tabulate the various points of view. Some people say that sex is basic and underlies all these other loves—love of friends, of God, of country. Others say that it is connected with them, but laterally; it is not their root. Others say that it is not connected at all. All I suggest is that we call the whole bundle of emotions love, and regard them as the fifth great experience through which human beings have to pass.