mental co-ordination is control of the brain. Hence it is necessary to train the organism through skilled performance. Ordinarily, mental and physical training are acquired together, as in the case of the painter who while mastering the intellectual principles of his art is training his eye, acquiring manual skill, and a hundred incidental lines of efficiency. But it is well for the devotee of industrial efficiency to remind himself of the mental half of his manual skill, and for the intellectual worker to make sure that his mental training is made complete on the physical side. The meeting point for all types of efficiency is the brain. Therefore for every man of us the right training of the brain is of supreme importance. ¹ It is of little avail to think, to make right suggestions, create ideal pictures, or even to discipline the emotions and desires, unless we also do something with our brains, hence with the organism, to carry the ideal into execution. Failure to do this accounts for most of the theoretical, that is, the inefficient people of the world. Man is an active being, his organism was made for action, his brain is an instrument for action, and success lies in carrying the wisdom of the mental world into realisation in the external world.

¹ Cf. Arnold Bennett, The Human Machine, New York, Geo. H. Doran Co., 191 1. See also Professor James's chapter on Habit, Psychology, vol. i.