The Quaestiones disputatae de Veritate () by Thomas Aquinas (1225-1274) is a collection of questions that are discussed in the disputation style of medieval scholasticism. It covers a wide variety of topics, from the definition of truth to divine providence, conscience, and the good and free decision.
The work was originally written circa 1256–1259.
A complete translation into English was published by Henry Regnery Company in three volumes beginning in 1952.
Questions
The work is subdivided into 29 questions, as follows: de Veritate - on Truth de Scientia Dei - on the Knowledge of God de Ideis - on Ideas de Verbo - on the Word de Providentia - on Providence de Praedestinatione - on Predestination de Libro Vitae - on the Book of Life de Cognitione Angelorum - on the Knowledge of the Angels de Communicatione Scientiae Angelicae per Illuminationes et Locutiones - on the Communication of the Angels through Illuminations and Locutions de Mente in qua est Imago Trinitatis - on the Mind inasmuch as it is the Image of the Trinity de Magistro - on Teaching de Prophetia - on Prophesy de Raptu - on Rapture, or religious ecstasy de Fide - on Faith de Ratione Superiori et Inferiori - on Superior and Inferior Reason de Synderesi - on Synderesis de Conscientia - on Conscience de Cognitione Primi Hominis in Statu Innocentiae - on the Knowledge of the first man in the State of Innocence de Cognitione Animae post Mortem - on the Knowledge of the Soul after death de Scientia Animae Christi - on the Knowledge of the Soul of Christ de Bono - on the Good de Appetitu Boni et Voluntate - on the Striving for Good and the Will de Voluntate Dei - on the Will of God de Hominis Libero Arbitrio - on the Free Decision of Man de Sensualitate - on Sense-knowledge de Passionibus - on the Emotions de Gratia - on Grace de Remissio Peccatorum - on the Remission of Sins de Gratia Christi - On the Grace of Christ