Apology for Walking. Freedom in Nature and Wildness

So long as man does not bother about what he is or whence he came or whither he is going, the whole thing seems as simple as the verb "to be"; and you may say that the moment he does begin thinking about what he is and whence he came and whither he is going, he gets on to a lot of roads that lead nowhere, and that spread like the fingers of a hand or the sticks of a fan; so that if he pursues two or more of them he soon gets beyond his straddle, and if he pursues only one he gets farther and farther from the rest of all knowledge as he proceeds.
You may say that and it will be true. But there is one kind of knowledge a man does get when he thinks about what he is, whence he came and whither he is going, which is this: that it is the only important question he can ask himself... Of the great many things which man does which he should not do or need not do, if he were wholly explained by the verb "to be, " you may count walking. Of course if you build up a long series of guesses as to the steps by which he learnt to walk, and call that an explanation, there is no more to be said... Walking is the natural recreation for a man who desires not absolutely to suppress his intellect but to turn it out to play for a season.
All great men of letters have, therefore, been enthusiastic walkers (exceptions, of course, excepted). Shakespeare, besides being a sportsman, a lawyer, a divine, and so forth, conscientiously observed his own maxim, "Jog on, jog on, the footpath way"; though a full proof of this could only be given in an octavo volume. Anyhow, he divined the connection between walking and a "merry heart"; that is, of course, a cheerful acceptance of our position in the universe founded upon the deepest moral and philosophical principles...