Here, physiology shows the way in that it teaches us that even while an idea is in the process of conception innervations proceed to the muscles, which naturally represent only a moderate expenditure. It is now easy to assume that this expenditure of innervation which accompanies the conception of the idea is utilized to represent the quantitative factor of the idea, and that when a great motion is imagined it is greater than it would be in the case of a small one. The conception of greater motions would thus actually be greater, that is, it would be a conception accompanied by greater expenditure. _Ideational Mimicry_ Observation shows directly that human beings are in the habit of expressing the big and small things in their ideation content by means of a manifold expenditure or by means of a sort of _ideational mimicry_. When a child or a person of the common people or one belonging to a certain race imparts or depicts something, one can easily observe that he is not content to make his ideas intelligible to the hearer through the choice of correct words alone, but that he also represents the contents of the same through his expressive motions. Thus he designates the quantities and intensities of “a high mountain” by raising his hands over his head, and those of “a little dwarf” by lowering his hand to the ground. If he broke himself of the habit of depicting with his hands, he would nevertheless do it with his voice, and if he should also control his voice, one may be sure that in picturing something big he would distend his eyes, and describing something little he would press his eyes together. It is not his own affects that he thus expresses, but it is really the content of what he imagines.