(a) are prescribed by standards. The various physical
habits of the man, the motions that are used, having
all been timed and then standardized, the worker
acquires physical habits that are fixed.
(b) are taught;[1] therefore they are not remote but come
actually and promptly into the consciousness and into
the action of the worker.
(c) are retained, because they are standard habits and
because the rewards which are given for using them make
it an object to the worker to retain them.
(d) Are reënforced by individuality and functionalization;
that is to say, the worker is considered as an
individual, and his possibilities are studied, before
he is put into the work; therefore, his own
individuality and his own particular function naturally
reënforce those habits which he is taught to form.
These habits, being scientifically derived, add to
physical improvement.