Related:

• Barber's Laws of Backpacking 1) The integral of the gravitational potential taken around any loop trail you choose to hike always comes out positive.
  2) Any stone in your boot always migrates against the pressure gradient to exactly the point of most pressure....
• The remaining distance to your chosen campsite remains constant as twilight approaches.
  -- Milt Barbe...
• The net weight of your boots is proportional to the cube of the number of hours you have been on the trail.
  -- Milt Barbe...
• The number of stones in your boot is directly proportional to the number of hours you have been on the trail.
  -- Milt Barbe...
• When you arrive at your campsite, it is full. -- Milt Barbe
• The difficulty of finding any given trail marker is directly proportional to the importance of the consequences of failing to find it.
  -- Milt Barbe...
• Any stone in your boot always migrates against the pressure gradient to exactly the point of most pressure.
  -- Milt Barbe...
• If you take your boots off, you'll never get them back on again. -- Milt Barbe