Men seek out retreats for themselves in the country, by the seaside, on the mountains, and thou too art wont to long above all for such things. But all this is unphilosophical to the last degree, when thou canst at a moment’s notice retire into thyself. For nowhere can a man find a retreat more full of peace or more free from care than his own soul—above all if he have that within him, a steadfast look at which and he is at once all good ease, and by good ease I mean nothing other than good order. Make use, then, of this retirement continually and regenerate thyself.
— Plotinus