· Summa I-II & II-II
Moral Theology
The science of human acts ordered to the supernatural end. Conscience, law, sin, the virtues and vices, the Decalogue, the precepts of the Church. Tanquerey, Alphonsus Liguori, and Aquinas's Secunda Pars form the principal sources.
Glenn's Tour of the Summa
277 questionsGlenn's chapter-by-chapter précis of the Summa Theologica, with links to the full Latin–English text at New Advent.
Q.1 The End Man Seeks Q.2 Where Happiness is Found Q.3 What Happiness Is Q.4 Requisites for Happiness Q.5 The Attainment of Happiness Q.6 Voluntariness Q.7 Circumstances of Human Acts Q.8 Volition and Its Object Q.9 What Moves the Will Q.10 How the Will is Moved Q.11 Fruition or Enjoyment Q.12 Intention Q.13 Election or Choice of Means Q.14 Counsel Q.15 Consent Q.16 Use Q.17 Commanded Acts of the Will Q.18 Moral Good and Evil in Human Acts Q.19 Morality in Acts of the Will Q.20 Good and Evil in External Acts
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Magisterial Documents
5Rerum Novarum
The founding document of Catholic social teaching — addressing the condition of workers, the right to private property, the just wage, and the proper roles of the state, the Church, and voluntary associations.
Casti Connubii
Reaffirms the sanctity and indissolubility of Christian marriage, condemns contraception, sterilisation, and eugenics, and establishes the doctrinal framework that Humanae Vitae later presupposes.
Quadragesimo Anno
Develops Leo XIII's social teaching forty years on — introducing the principle of subsidiarity, critiquing both unrestrained capitalism and socialism, and proposing a reconstruction of the social order.
Humanae Vitae
Reaffirms the Church's constant teaching that every act of marital intercourse must remain open to the transmission of life, prohibiting artificial contraception.
Veritatis Splendor
Provides the philosophical and theological foundations for Catholic moral theology — defending intrinsically evil acts, the objectivity of the moral law, and the inseparability of freedom and truth against proportionalism and consequentialism.
Philosophical Foundation
Catholic Philosophy
Ethics
Moral theology builds on ethics — the natural law, the virtues, the human good. Glenn's Ethics presents the philosophical foundation.