Thomas Aquinas (1225–1274)

Saint Thomas Aquinas was an Italian Catholic philosopher and theologian in the scholastic tradition, known as Doctor Angelicus, Doctor Universalis. He is the most famous classical proponent of natural theology. He gave birth to the Thomistic school of philosophy, which was long the primary philosophical approach of the Catholic Church. He is considered by many Catholics to be the Church's greatest theologian; he is one of the thirty-three Doctors of the Church.

From Wikipedia 

See also:   
The Internet Encyclopedia of Philosophy  
New Advent 

–––––––––––––––––––––––––––––––––––––––––––

Please report any failed links to Richard. Thanks.