Thomas Aquinas

"Give me, O Lord, a steadfast heart,
Which no unworthy affection may drag downwards;
Give me an unconquered heart,
Which no tribulation can wear out;
Give me an upright heart,
Which no unworthy purpose may tempt aside.
Bestow on me, also, O Lord my God,
Understanding to know You,
Diligence to seek You,
Wisdom to find You,
And a faithfulness that may finally embrace You,
Through Jesus Christ our Lord."