If we assume a wider thinker, it is evident that his purposes envelop mine. I am really lecturing _for_ him; and altho I cannot surely know to what end, yet if I take him religiously, I can trust it to be a good end, and willingly connive. I can be happy in thinking that my activity transmits his impulse, and that his ends prolong my own. So long as I take him religiously, in short, he does not de-realize my activities. He tends rather to corroborate the reality of them, so long as I believe both them and him to be good. When now we turn to ideas, the case is different, inasmuch as ideas are supposed by the association psychology to influence each other only from next to next. The 'span' of an idea, or pair of ideas, is assumed to be much smaller instead of being larger than that of my total conscious field. The same results may get worked out in both cases, for this address is being given anyhow. But the ideas supposed to 'really' work it out had no prevision of the whole of it; and if I was lecturing for an absolute thinker in the former case, so, by similar reasoning, are my ideas now lecturing for me, that is, accomplishing unwittingly a result which I approve and adopt. But, when this passing lecture is over, there is nothing in the bare notion that ideas have been its agents that would seem to guarantee that my present purposes in lecturing will be prolonged. _I_ may have ulterior developments in view; but there is no certainty that my ideas as such will wish to, or be able to, work them out. The like is true if nerve-cells be the agents. The activity of a nerve-cell must be conceived of as a tendency of exceedingly short reach, an 'impulse' barely spanning the way to the next cell--for surely that amount of actual 'process' must be 'experienced' by the cells if what happens between them is to deserve the name of activity at all. But here again the gross resultant, as _I_ perceive it, is indifferent to the agents, and neither wished or willed or foreseen. Their being agents now congruous with my will gives me no guarantee that like results will recur again from their activity. In point of fact, all sorts of other results do occur. My mistakes, impotencies, perversions, mental obstructions, and frustrations generally, are also results of the activity of cells. Altho these are letting me lecture now, on other occasions they make me do things that I would willingly not do. The question _Whose is the real activity?_ is thus tantamount to the question _What will be the actual results?_ Its interest is dramatic; how will things work out? If the agents are of one sort, one way; if of another sort, they may work out very differently. The pragmatic meaning of the various alternatives, in short, is great. It makes more than a merely verbal difference which opinion we take up.