I hate this title.
Schumacher makes some useful points, such as that we think of ourselves in terms of our intentions and others in terms of their actions, but his thinking is weighted and prejudiced by his deep religiosity and preference for mysticism. The negative assessments he makes of scientific thinking and achievements seem arbitrary if you don't agree with the Christian perspective he takes as read.
Schumacher sets out the basis of his philosophy as if it must be obvious to all right-thinking people, and laments that contemporary culture is so wrong-headed as not to see this. I don't buy it at all. His ideas about life-force, consciousness and self-knowledge can't be so indisputable as he casually assumes!