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.
Robert Louis StevensonYou start a question, and it's like starting a stone. You sit quietly on the top of a hill; and away the stone goes, starting others.
Robert Louis Stevenson