A proposition of geometry does not compete with life; and a proposition of geometry is a fair and luminous parallel for a work of art. Both are reasonable, both untrue to the crude fact; both inhere in nature, neither represents it.
Robert Louis StevensonNow, 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 StevensonTalk is by far the most accessible of pleasures. It costs nothing in money, it is all profit, it completes our education, founds and fosters our friendships, and can be enjoyed at any age and in almost any state of health.
Robert Louis Stevenson