That which saves society is not that which can be seen upon the surface of things. It is not the power of industry, of war, of genius, of letter or arts. It is what touches its depths in a silence called the silence of good things. -- From a NY Times interview
The survival of wilderness -- of places that we do not change, where we allow the existence of creatures we perceive as dangerous -- is necessary. Our sanity probably requires it. These places function, whether we intend them to or not, as sacred groves -- places we respect and leave alone, not because we understand well what goes on there, but because we do not.