"In order for us to maintain our way of living, we must, in a broad sense, tell lies to each other, and especially to ourselves.  It is not necessary that the lies be particularly believable.  The lies act as barriers to truth.  These barriers to truth are necessary  because without them many deplorable acts would become impossibilities.  Truth must be at all costs avoided. When we do allow self-evident truths to percolate past our defenses and into our consciousness, they are treated like so many hand grenades rolling across the dance floor of an improbably macabre dance party.  We try to stay out of harm's way, afraid that they will go off, shatter our delusions, and leave us exposed to what we have done to ourselves and to the world, expose us as the hollow people we have become.  And so we avoid these truths, these self-evident truths, and continue the dance of world destruction."

Derrick Jensen, A Language Older Than Words, Context Books, New York, 2000, Silencing, page 2.