As the mind can do great things within the sphere of imagination and theory, but cannot provide the body Avith its necessaries, so the brain-workers have become men of imagination and theory only, while the bodily toilers, deprived of necessary mental culture, have sunk to the level of beasts of burden, or soulless machines . "
But, just as an engine cannot work well without an engineer, so it cannot be good for physical Avork to be done Avithout the mind to guide it.  As the mind can do great things within the sphere of imagination and theory, but cannot provide the body Avith its necessaries, so the brain-workers have become men of imagination and theory only, while the bodily toilers, deprived of necessary mental culture, have sunk to the level of beasts of burden, or soulless machines . "  If the engineer leaves his engine, it may certainly- run for a time, but sooner or later it Avill stop work ; the water in the boiler Avill be exhausted, the bearings wear out or perhaps take fire, or something will happen, and the machine either come to a standstill or be destroyed.