Note 296 — Chapter X · (continued 2)

"When we compare the listless inactivity of the infant, slumbering from the moment at which he takes his milky food to the moment at which he wakes to require it again, with the restless energies of that mighty being which he is to become in his maturer years, pouring truth after truth, in rapid and dazzling profusion, upon the world, or grasping in his single hand the destiny of empires, how few are the circumstances of resemblance which we can trace, of all that intelligence which is afterwards to be displayed; how little more is seen than what serves to give feeble motion to the mere machinery of life!... Every age, if we may speak of many ages in the few years of human life, seems to be marked with a distinct character. Each has its peculiar objects which excite lively affections; and in each, exertion is excited by affections, which in other periods terminate without inducing active desire. The boy finds a world in less space than that which bounds his visible horizon; he wanders over his range of field and exhausts his strength in the pursuit of objects which, in the years that follow, are seen only to be neglected; while to him the objects that are afterwards to absorb his whole soul are as indifferent as the objects of his present passions are destined then to appear.... How many opportunities must every one have had of witnessing the progress of intellectual decay, and the coldness that steals upon the once benevolent heart! We quit our country, perhaps at an early period of life, and after an absence of many years we return with all the remembrances of past pleasure which grow more tender as they approach their objects. We eagerly seek him to whose paternal voice we have been accustomed to listen with the same reverence as if its predictions had possessed oracular certainty,—who first led us into knowledge, and whose image has been constantly joined in our mind with all that veneration which does not forbid love. We find him sunk, perhaps, in the imbecility of idiotism, unable to recognize us,—ignorant alike of the past and of the future, and living only in the sensibility of animal gratification. We seek the favorite companion of our childhood, whose tenderness of heart, etc.... We find him hardened into a man, meeting us scarcely with the cold hypocrisy of dissembled friendship—in his general relations to the world careless of the misery he is not to feel.... When we observe all this,... do we use only a metaphor of little meaning when we say of him that he is become a different person, and that his mind and character are changed? In what does the identity consist?... The supposed test of identity, when applied to the mind in these cases, completely fails. It neither affects, nor is affected, in the same manner in the same circumstances. It therefore, if the test be a just one, is not the same identical mind." (T. Brown: Lectures on the Philosophy of the Human Mind, 'on Mental Identity.')