Hills and the Sea

There are two ways by which a man may acquire any kind of learning or profit, and this is especially true of travel. Everybody knows that one can increase what one has of knowledge or of any other possession by going outwards and outwards; but what is also true, and what people know less, is that one can increase it by going inwards and inwards. There is no goal to either of these directions, nor any term to your advantage as you travel in them.