Human ideals and human nature must develop together, and we cannot foresee what either may become; but for the present it would seem that an honest and reasonable idealism must look rather to the organization and control of all passions with reference to some conception of right, than to the expulsion of some passions by others. I doubt whether any healthy and productive love can exist which is not resentment on its obverse side. How can we rightly care for anything without in some way resenting attacks upon it? Apparently, the higher function of hostility is to put down wrong; and to fulfil this function it must be rationally controlled with a view to ideals of justice. In so far as a man has a sound and active social imagination, he will feel the need of this control, and will tend with more or less energy, according to the vigor of his mind, to limit his resentment to that which his judgment tells him is really unjust or wrong. Imagination presents us with all sorts of conflicting views, which reason, whose essence is organization, tries to arrange and control in accordance with some unifying principle, some standard of equity: moral principles result from the mind’s instinctive need to achieve unity of view. All special impulses, and hostile feeling among them, are brought to the bar of conscience and judged by such standards as the mind has worked out. If declared right or justifiable, resentment is endorsed and enforced by the will; we think of it as righteous and perhaps take credit with ourselves for it. But if it appears grounded on no broad and unifying principle, our larger thought disowns it, and tends with such energy as it may have to ignore and suppress it. Thus we overlook accidental injury, we control or avoid mere antipathy, but we act upon indignation. The latter is enduring and powerful because consistent with cool thought; while impulsive, unreasoning anger, getting no re-enforcement from such thought, has little lasting force.