It is conceivable that animal life might have the attribute of using the heat of surrounding matter, at its natural temperature, as a source of energy for mechanical effect . . . The influence of animal or vegetable life on matter is infinitely beyond the range of any scientific enquiry hitherto entered on. Its power of directing the motions of moving particles, in the demonstrated daily miracle of our human free-will, and in the growth of generation after generation of plants from a single seed, are infinitely different from any possible result of the fortuitous concurrence of atoms.
"Arbeit macht frei" is a German phrase meaning "work brings freedom" or "work shall set you free/will free you" or "work liberates" and, literally in English, "work makes (one) free". The slogan is known for being placed at the entrances to a number of Nazi concentration camps.