Prayer of St. Thomas Aquinas

"Grant O merciful God, that I may ardently desire, carefully examine, truly know and perfectly fulfill those things that are pleasing to You and to the praise and glory of Your holy name. Direct my life, O my God, and grant that I might know what you would have me to do and for me to fulfill it as it necessary and profitable to my soul. Grant to me, O Lord my God, that I may not be found wanting in prosperity or in adversity and that I may not be lifted up by one nor cast down by the other. May I find joy in nothing but what leads to You and sorrow in nothing but leads away from You. May I seek to please no one or fear to displease anyone save only You. Grant to me O Lord God a vigilant heart that no subtle speculation may ever lead me from You; a noble heart that no unworthy affection may draw me from You; an upright heart that no evil purpose may turn me from you. Give me a steadfast heart that no tribulation may shatter and a free heart that no violent affection may claim as its own. And finally, grant me O Lord my God a mind to know you, diligence to seek you, wisdom to find you. Give me a way of life pleasing to You; perseverance to trust and await You in confidence that I shall embrace You at the last. Amen"