He took issue with word-for-word translations in Contra Errores Graecorum and distinguished between the titular people's knowledge of God and what can be known by taking Christian beliefs into account in Summa Contra Gentiles. This man's most famous work asserts that all knowledge is abstract and that perfect happiness can only come from contemplating God. That work also includes a section in which he uses Aristotle's four causes to advance five 
He took issue with word-for-word translations in Contra Errores Graecorum and distinguished between the titular people's knowledge of God and what can be known by taking Christian beliefs into account in Summa Contra Gentiles. This man's most famous work asserts that all knowledge is abstract and that perfect happiness can only come from contemplating God. That work also includes a section in which he uses Aristotle's four causes to advance five arguments for the existence of God, who is called the "first mover" and "first efficient cause." For 10 points, name this philosopher who wrote the Summa Theologica.
He took issue with word-for-word translations in Contra Errores Graecorum and distinguished between the titular people's knowledge of God and what can be known by taking Christian beliefs into account in Summa Contra Gentiles.
Saint Thomas Aquinas