A curious view common to Indian ethics, Plato, Aristotle, and much of the western tradition, holds that the summum bonum or supremely valuable state of mind lies in the right kind of contemplation: contemplation of the form of the good, or reflection upon the virtues. The idea is found in the Christian conception of beatitude as the eternal contemplation of a certain vision, and in the Kantian view that the ideal state is one free of desire and inclination (see apathy). Less mystical philosophies point out that contemplation is apt to decay into emptiness without the continual stimulus of desires, fresh action, and fresh problems.