text: The place where one lives, however, can contribute little towards tranquillity; it is the mind which must make everything agreeable to itself. I have seen men despondent in a gay and lovely villa, and I have seen them to all appearance full of business in the midst of a solitude. For this reason you should not refuse to believe that your life is well-placed merely because you are not now in Campania. But why are you not there? Just let your thoughts travel, even to this place. You may hold converse with your friends when they are absent, and indeed as often as you wish and for as long as you wish. For we enjoy this, the greatest of pleasures, all the more when we are absent from one another. For the presence of friends makes us fastidious; and because we can at any time talk or sit together, when once we have parted we give not a thought to those whom we have just beheld. And we ought to bear the absence of friends cheerfully, just because everyone is bound to be often absent from his friends even when they are present. Include among such cases, in the first place, the nights spent apart, then the different engagements which each of two friends has, then the private studies of each and their excursions into the country, and you will see that foreign travel does not rob us of much. A friend should be retained in the spirit; such a friend can never be absent. He can see every day whomsoever he desires to see.