Now, to be properly enjoyed, a walking tour should be gone upon alone.... Freedom is of the essence, because you should be able to stop and go on and follow this way or that as the freak takes you.... There should be no cackle of voices at your elbow to jar on the meditative silence of the morning.
Benjamin Franklin went through life an altered man because he once paid too dearly for a penny whistle. My concern springs usually from a deeper source, to wit, from having bought a whistle when I did not want one.