in the depths not the shadows of the soul...

The following is from the Pedagogical Seminary volume IX, an article written by G. Stanley Hall,

Where work that the boy has made himself with his own hands goes, there his interest follows. His reading is stimulated; the inner eye back of the retina is opened, and that priceless though semi-conscious education, which is by hints and suggestions and which is far more rapid and indelible than anything in the memorized and examinable region of the soul, goes on by leaps and bounds. Thus skill with the fingers is harnessed to development of the cerebral neurons, as it should be, and we are working in the depths and not the shallows of the soul.

Make, fix and create...