And this dream, to speak the truth, is the life of man; for as in the visions which appear to us in sleep, which seeing we do not see, and hearing we do not hear, and tasting and touching we do not either taste or touch, and speaking we do not speak, and walking we do not walk, and while appearing to exert other motions or to win other positions we are not in reality in any such motions or positions; but they
 
are mere empty fancies without any truth in them of the mind which fancies to itself a sketch, and makes to itself a representation of things which are not, as if they were; and in like manner the fancies which occur to waking people resemble the dreams of sleepers. They have come, they have departed; they have appeared, they have disappeared; before they could be scarcely comprehended they have flown away. And let every one who dreams in this way inquire within himself and he will find a proof of these things within, and without any proofs from me he will know the truth of what I say, especially if he happens to be at all an old man. He was at one time an infant, and after that a child, and then a boy, and then a youth, and subsequently a young man, and then a man, and last of all an old man, but he was not all these things at the same time. Did not the infant disappear before the child, and the child before the boy, and the boy before the youth, and the youth before the young man, and the young man before the full-grown man, and the man in the prime of life before the old man? and did not old age disappear in death? Perhaps, also, every one of the different ages of life yields in vigour to the one which comes next to it, and so dies before its time, nature by these means teaching us not to fear the death which comes upon all men, inasmuch as we have found it easy to bear the previous deaths, the death that is of the infant, and that of the child, and that of the boy, and that of the youth, and that of the young man, and that of the full grown man, not one of whom exist any longer when old age has arrived.
 And are not all the other things, relating to the body, dreams? Is not beauty an ephemeral thing, wasting away almost before it comes to its prime? And is not health an unsure thing by reason of the weaknesses which lie in wait to upset it? Again, is not strength a thing easily destroyed by diseases arising from innumerable causes? and is not the accuracy of all our outward senses easily overturned by the entrance of any vicious humour?