_Plotinus_. That is true, dear Porphyrius. But nevertheless, let me advise, nay implore, you to listen to the counsels of Nature rather than Reason. Follow the instincts of that primitive Nature, mother of us all, who, though she has manifested no affection for us in creating us for unhappiness, is a less bitter and cruel foe than our own reason, with its boundless curiosity, speculation, chattering, dreams, ideas, and miserable learning. Besides, Nature has sought to diminish our unhappiness by concealing or disguising it from us as much as possible. And although we are greatly changed, and the power of nature within us is much lessened, we are not so altered but that much of our former manhood remains, and our primitive nature is not quite stifled within us. In spite of all our folly, it will never be otherwise. So, too, the mistaken view of life that you mention, although I admit that it is in reality palpably erroneous, will continue to prevail. It is held not only by idiots and the half-witted, but by clever, wise, and learned men, and always will be, unless the Nature that made us--and not man nor his reason--herself puts an end to it. And I assure you that neither disgust of life, nor despair, nor the sense of the nullity of things, the vanity of all anxiety, and the insignificance of man, nor hatred of the world and oneself, are of long duration; although such dispositions of mind are perfectly reasonable, and the contrary unreasonable. For our physical condition changes momentarily in more or less degree; and often without any especial cause life endears itself to us again, and new hopes give brightness to human things, which once more seem worthy of some attention, not indeed from our understanding, but from what may be termed the higher senses of the intellect. This is why each of us, though perfectly aware of the truth, continues to live in spite of Reason, and conforms to the behaviour of others; for our life is controlled by these senses, and not by the understanding.