Energy goods are for engineering, technologies, and machines what consciousness is for men. Energy is indestructible; it may only change in form or become absorbed by other material system. Engineering – work of the high, not lowest status, activity that involves designing, constructing, modifying, and operating technical systems, is aimed at resolving defined problems, is economically and ecologically acceptable, and uses available scientific and technical knowledge. Entropy – measure of processing, release, and transformation of energy carriers (gr.: en – energy, tropos – processing, transformation). Work of the lowest status is the one that is intensively entropic. One falling tree causes more noise than the whole forest when it grows.