“So that what we are really doing when we walk through the city is thinking, and thinking in such a way that our thoughts compose a journey, and this journey is no more or less than the steps we have taken, so that, in the end, we might safely say that we have been on a journey, and even if we do not leave our roon, it has been a journey, and we might safely say that we have been somewhere, even if we don’t know where it is”