it. This narrows the limits of our problem, which may now be stated as follows: How is it possible that another's weal and woe should influence my will directly, that is, exactly in the same way as otherwise my own move it? How can that which affects another for good or bad become my immediate motive, and actually sometimes assume such importance that it more or less supplants my own interests, which are, as a rule, the single source of the incentives that appeal to me?

Obviously, only because that other person becomes the ultimate object of my will, precisely as usually I myself am that object; in other words, because I directly desire weal, and not woe, for him, just as habitually I do for myself. This, however, necessarily implies that I suffer with him, and feel his woe, exactly as in most cases I feel only mine, and