Creator of all things, true source of light and wisdom,
origin of all being,
graciously let a ray of your light penetrate
the darkness of my understanding.
Take from me the double darkness
in which I have been born,
an obscurity of sin and ignorance.
Give me a keen understanding,
a retentive memory, and
the ability to grasp things correctly and fundamentally.
Grant me the talent of being exact
in my explanations and the ability to express myself
with thoroughness and charm.
Point out the beginning,
direct the progress,
and help in the completion.
I ask this through Christ our Lord.
Thomas Aquinas was a 13th Century Italian Priest. He is most famous for his writings on natural theology – a form of theology that is based on experience and reasoning (rather than revealed theology – formed from scripture and spiritual experiences). He has had a considerable impact on the thinking and theology of the Catholic Church.