“Three things are necessary for man to be saved: knowledge of what is to be believed, knowledge of what is to be desired, and knowledge of what is to be done.”

Two Precepts of Charity (1273)
Sermons on the Ten Commandments (Collationes in decem praeceptes, c. 1273), Prologue (opening sentence)
Variant translation: Three things are necessary for the salvation of man: to know what he ought to believe; to know what he ought to desire; and to know what he ought to do.
Original: (la) Tria sunt homini necessaria ad salutem: scilicit scientia credendorum, scientia desiderandorum, et scientia operandorum.

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Thomas Aquinas 104
Italian Dominican scholastic philosopher of the Roman Catho… 1225–1274

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