BF work on one virtue a week:Temperance: Silence: Order: Resolution: Frugality: Industry: Sincerity: Justice: Moderation: Cleanliness: Chastity: Tranquility: Humility:
A. Bozovic, H. Budanur, E. Nonveiller, and B. Pavlin. Bulletin of the International Association of Engineering Geology - Bulletin de l'Association Internationale de Géologie de l'Ingénieur, 24 (1):
45--51(Dec 1, 1981)