At Once Good and Imperfect

“ Perfect courage is, according to Thomas, a gift of the Divine Spirit. Through the Spirit natural strength of mind is elevated to its supernatural perfection. This however means that it is united with the specifically Christian virtues, faith, hope and love. Thus a development is visible in which the ontological side of courage is taken into faith (including hope), while the ethical side of courage is taken into love or the principle of ethics. ”

- Paul Tillich, The Courage to Be (8).