And so, merely augmenting desire oftentimes is not enough to bring about decision and action, even in cases which are not so extreme as those which we have just cited. The proposition may be of such a nature that it does not admit of arousing desire to any very high pitch. In all such cases what is needed is some special stimulus to the will. As every chemist knows, sulphuric acid and alcohol, when mingled together in a glass vessel, do not combine. They have an affinity for each other. All of the necessary elements for active combination are present in that glass, and yet they do not combine. But drop in a bit of platinum and instantly the whole mass is boiling with energy let loose. In a similar way, oftentimes, all the elements for decision and action are present in the mind, yet nothing happens. But a word or a little act, seemingly insignificant in itself, oftentimes breaks the spell, as it were, and decision and action follow. In our first chapter of this part we described some of these methods for ripening desire into decision and action. This chapter we shall devote to a consideration of different classes of individuals and the best methods of inducing in them favorable decision and action. THE IMPULSIVE MAN The impulsive individual must be rushed. His emotions are very responsive, easily aroused, and, as, a rule, when aroused take a strong hold upon him. It is the impulsive person's tendency always to act quickly and to act in response to his strong feelings. The impulsive man discharges his feelings with speed in action, and they rapidly evaporate. Therefore, desire, when aroused, must be quickly ripened into decision and action or it soon cools, and it is too late. As a general rule, the impulsive person is well supplied with fears, and if he is given time to think the matter over his lack of courage begins to assert itself. Fears of possible or impossible disaster begin to take form until the feelings of fear and apprehension entirely overshadow the desires which have been created. Mark Twain's story of his attendance at a missionary meeting is typical. After the speaker had been talking for half an hour, Mark was in such hearty sympathy with him and the cause for which he plead that he decided to put one dollar in the collection box when it came around--but the man kept on talking. At the end of three-quarters of an hour, Mark decided he would give only fifty cents. At the end of an hour, he decided that he would give nothing, and when, at the end of an hour and a half, the collection box finally did come around, Mark took out a dollar to pay himself for his pains. INDICATIONS OF IMPULSIVENESS