There is a fourth, or supplementary process in Nature's educational course, the successful imitation of which promises to be of great general benefit, as soon as it shall be universally adopted in our elementary schools. It is, as it were, the door-way of intellect,--the break in the cloud, through which the sun-light of concocted knowledge is to find its way, to enlighten and cheer the general community.--We refer to that acquirement, by which persons are enabled, without distraction of mind, internally to prepare and arrange their ideas, at the moment they are verbally communicating them to others. When this process is analysed, we find, as explained in a former chapter, that it consists simply in an ability to think, and to arrange our thoughts at the time we are speaking;--to exercise the mind on one set of ideas, at the moment we are giving expression to another. Simple as this at first sight may appear, we have seen that it is but very gradually arrived at;--that many persons, otherwise possessing great abilities, never can command it;--that it is altogether an acquisition depending upon the use of proper means;--but that, at the same time, any person whatever, by submitting to the appropriate discipline, may attain almost any degree of perfection in its exercise. The object required by the teacher, therefore, is a series of exercises, by means of which his pupils will be trained to think and to speak at the same moment; to have their minds busily occupied with some object or idea, while their powers of speech are engaged in giving utterance to something else. For the purpose of suggesting such an exercise, we shall again attend shortly to the exhibition of the process, as we find it under the superintendence of Nature.