I think that I cannot preserve my health and spirits, unless I spend four hours a day at least — and it is commonly more than that — sauntering through the woods and over the hills and fields, absolutely free from all worldly engagements. – Henry David Thoreau

The right to be alone — the most comprehensive of rights, and the right most valued by civilized man. – Louis D. Brandeis

But on the first day came veiled spirits from all hours into his soul… a soft intoxication, which the atmosphere of nature, like that of a wine-store, communicated to him, spread itself, like an enchanted solitude around his soul. – Jean Paul Friedrich Richter, Hesperus, or Forty-Five Dog-Post-Days: A Biography,