To have a will is to be able to desire an outcome and to purpose to bring it about. Strength of will, or firmness of purpose, is supposed to be good, and weakness of will or akrasia bad. See also free will, good will, volition. Kant makes the distinction between wille which is the ability to act under the heading of reason, or to obey the moral law, and willkür, which is will as affected by sensuous desire or inclination.