I never found the companion that was so companionable as solitude. [It allows you to] be the Mungo Park, the Lewis and Clark of your own streams and oceans; [to] explore your own higher latitudes; [to] be a Columbus to whole new continents and worlds within you, opening new channels, not of trade, but of thought.
Henry David ThoreauThus men will lie on their backs, talking about the fall of man, and never make an effort to get up.
Henry David Thoreau