There is first of all the consideration that it is the fact of action that unites or brings together what we call “desire” and what we call “thought,” the world of our desires and emotions and the world of our thoughts and our knowledge. This is really a consideration of the utmost importance to us when we think of what we have allowed ourselves to call the characteristic dualism[177] of modern times, the discrepancy that seems to exist between the world of our desires and the impersonal world of science--which latter world educated people are apt to think of as the world before which everything else must bend and break, or at least bow. Our point here is not merely that of the humiliating truth of the wisdom of the wiseacres who used to tell us in our youth that we will anyhow have to act in spite of all our unanswered questions about things, but the plain statement of the fact that (say or think what we will) it is in _conscious action_ that our desires and our thoughts _do_ come together, and that it is there that they are both seen to be but partial expressions of the one reality--the life that is in things and in ourselves, and that engenders in us both emotions and thoughts, even if the latter do sometimes seem to lie “too deep for tears.” It is with this life and with the objects and aims and ends and realities that develop and sustain it that all our thoughts, as well as all our desires, are concerned. If action, therefore, could only be properly understood, if it can somehow be seen in its universal or its cosmic significance, there would be no discrepancy and no gap between the world of our ideals and the world of our thoughts. We would know what we want,[178] and we would want and desire what we know we can get--the complete development of our personality. Again there is the evidence that exists in the sciences of biology and anthropology in support of the important role played in both animal and human evolution by effort and choice and volition and experimentation. “Already in the contractibility of protoplasm and in the activities of typical protozoons do we find ‘activities’ that imply[179] volition of some sort or degree, for there appears to be some selection of food and some spontaneity of movement: changes of direction, the taking of a circuitous course in avoidance of an obstruction, etc., indicate this.” Then again, “there are such things as the diversities in secondary sexual characters (the ‘after-thoughts of reproduction’ as they are called), the endless shift of parasites, the power of animals to alter their coloration to suit environment, and the complex ‘internal stimuli’ of the higher animals in their breeding periods and activities, which make us see only too clearly what the so-called struggle for life has been in the animal world.”...