"In the present state of the world, the control we have of physical energies, heat, light, electricity, etc., without control over the use of ourselves is a perilous affair. Without control of ourselves, our use of other things is blind."
*From Dewey's preface to F.M. Alexander'sThe Resurrection of the Body. Quoted as an epigraph in Michael Heim's The Metaphysics of Virtual Reality.