The environment is not simply the facts which happen objectively to lie about an agent; it is such part of the facts as may be _related_ to the capacity and the disposition and gifts of the agent. Two members of the same family may have what, to the outward eye, are exactly the same surroundings, and yet each may draw from these surroundings wholly unlike stimulus, material and motives. Each has a different environment, made different by his own mode of selection; by the different way in which his interests and desires play upon the plastic material about him. It is not, then, the environment as physical of which we are speaking, but as it appeals to consciousness, as it is affected by the make-up of the agent. This is the _practical_ or _moral_ environment. The environment is not, then, what is then and there present in space. To the Christian martyr the sufferings of his master, and the rewards of faithfulness to come to himself were more real parts of his environment than the stake and fire. A Darwin or a Wallace may find his environment in South America or the Philippine Islands--or, indeed, in every fact of a certain sort wherever found upon the earth or in whatever geological era. A man of philanthropic instincts may find _his_ environment among Indians or Congo negroes. Whatever, however near or remote in time and space, an individual's capacities and needs relate him to, is his environment. The moment we realize that only what one conceives as proper material for calling out and expressing some internal capacity is a part of his surroundings, we see not only that capacity depends upon environment, but that environment depends upon capacity. In other words, we see that each in itself is an abstraction, and that the real thing is the individual who is constituted by capacity and environment in their relation to one another. _Function_ is a term which we may use to express union of the two sides of individuality. The idea of function is that of an active relation established between power of doing, on one side, and something to be done on the other. To exercise a function as a student is not to cultivate tastes and possibilities internally; it is also to meet external demands, the demands of fact, of teachers, of others needing knowledge. The citizen exercises his function not simply in cultivating sentiments of patriotism within; one has to meet the needs of the city, the country in which one lives. The realization of an artistic function is not poring over emotions of beauty pumped up within one's self; it is the exercise of some calling. On the other hand, it hardly needs saying that the function of a student, a citizen, an artist, is not exercised in bare conformity to certain external requirements. Without the inner disposition and inclination, we call conduct dead, perfunctory, hypocritical. An activity is not functional, unless it is organic, expressing the life of the agent.