"2. The movements which are general from the time they begin, and which form no reaction. It is these which constitute internal emotions, and it is of them alone of which we shall treat. "But previously, it is necessary to say a word regarding the _feeling of existence_, because this feeling is the source from which the inner emotions originate. "_On the Feeling of Existence._ "The feeling of existence (_sentiment d'existence_), which I shall call _inner feeling_,[183] so as to separate from it the idea of a general condition (_généralité_) which it does not possess, since it is not common to all living beings and not even to all animals, is a very obscure feeling, with which are endowed those animals provided with a nervous system sufficiently developed to give them the faculty of feeling. "This sentiment, very obscure as it is, is nevertheless very powerful, for it is the source of inner emotions which test (_éprouvent_) the individuals possessing it, and, as the result, this singular force urges these individuals to themselves produce the movements and the actions which their wants require. Moreover this feeling, considered as a very active _motor_, only acts thus by sending to the muscles which necessarily cause these movements and actions the nervous fluid which excites them.... "Indeed, as the result of organic or vital movements which are produced in every animal, that which possesses a nervous system sufficiently developed has physical sensibility and continually receives in every inner and sensitive part impressions which continually affect it, and which it feels in general without being able to distinguish any single one. "The sentiment of existence [consciousness] is general, since almost every sensitive part of the body shares in it. 'It constitutes this _me_ (_moi_) with which all animals, which are only sensitive, are penetrated, without perceiving it, but which those possessing a brain are able to notice, having the power of thought and of giving attention to it. Finally, it is in all the source of a power which is aroused by wants, which acts effectively only by emotion, and through which the movements and actions derive the force which produces them'.... "Finally, the inner feeling only manifests its power, and causes movements, when there exists a system for muscular movement, which is always dependent on the nervous system, and cannot take place without it." The author then states that these emotions of the organic sense may operate in the animals and in man either without or with an act of their will.