At the outset, truth was defined as the "correspondence" or "agreement" of an idea with its object. But we have seen that correspondence or agreement with an object means the completion and determination of the idea itself, and since the idea is here a specific "plan of action," it would seem that the "true" idea would be the one that can complete itself by stimulating a satisfying activity. The false idea would be one that cannot complete itself in a satisfying activity, such as singing in tune, constructing a mathematical equation, etc., and just this solution is very clearly expounded by our author. In the case of mathematical inquiry, In just so far as we _pause satisfied_ we observe that there "is no other" mathematical fact to be sought _in the direction of the particular inquiry in hand_. Satisfaction of purpose by means of _presented fact_ and such determinate satisfaction as sends us to no other experience for further light and fulfillment, precisely this outcome is itself the Other that is sought when we begin our inquiry.[194] So "when other facts of experience are sought," if I watch for stars or for a chemical precipitate, or for a turn in the stock market, or in the sickness of a friend, my ideas are true when they are satisfied with "the presented facts." Again, It follows that the finally determinate form of the object of any finite idea is that form which the idea itself would assume whenever it became individuated, or in other words, became a completely determined idea, an idea or will fulfilled by a wholly adequate empirical content, for which no other content need be substituted or from the point of view of the satisfied idea, could be substituted.[195] In such passages as these it seems clear that the test of the truth of an idea is its power to bring us to the point where we "pause satisfied," where "no other content need be substituted," etc. Nor in such passages does there seem to be any doubt of reaching satisfaction in particular cases. Here, it appears, we _may_ sing in tune, we _may_ get the desired precipitate, and possibly even interpret the stock market correctly. Of course, the discord, the hunger, the loss, will come again; but so will new ideas, new truths. "Man thinks in order to get control of his world and thereby of himself."[196] Then the control actually gained must measure the value, the truth of his thought. Do you wish to sing in tune, "then your musical ideas are false if they lead you to strike what are then called false notes."[197]