There are four forms of wisdom: first, moral judgment, or the knowledge of what should and should not be done, combined with watchfulness of the intellect; second, self-restraint, whereby our moral purpose is safeguarded and kept free from all acts, thoughts and words that do not accord with God; third, courage, or strength and endurance in sufferings, trials and temptations encountered on the spiritual path; and fourth, justice, which consists in maintaining a proper balance between the first three.

These four general virtues arise from the three powers of the soul in the following manner: from the intelligence, or intellect, come moral judgment and justice, or discrimination; from the desiring power comes self-restraint; and from the incensive power comes courage.

–- St Peter of Damaskos,"The Four Virtues of the Soul", from G. E. H. Palmer, Philip Sherrard, and Bishop Kallistos Ware, "The Philokalia: Vol. III," (London: Faber and Faber, 1984), pp. 100 – 101.

Orignially published in the October 9, 2011 weekly bulletin