St. Thomas Aquinas' Prayer Before Study
Ineffable Creator, Who out of the treasures of Thy wisdom has appointed three hierarchies of Angels and set them in admirable order high above the heavens and has disposed the diverse portions of the universe in such marvelous array, Thou Who art called the True Source of Light and supereminent Principle of Wisdom, be pleased to cast a beam of Thy radiance upon the darkness of my mind and dispel from me the double darkness of sin and ignorance in which I have been born.
Thou Who makes eloquent the tongues of little children, fashion my words and pour upon my lips the grace of Thy benediction. Grant me penetration to understand, capacity to retain, method and facility in study, subtlety in interpretation and abundant grace of expression. Order the beginning, direct the progress and perfect the achievement of my work, Thou Who art true God and true Man and livest and reigns for ever and ever. Amen.