[source: Cambridge Companion to Aquinas, p. 

CATHOLIC CHURCH'S THOMAS AQUINAS DEEPLY INFLUENCED BY IBN SINA AND MOSES MAIMONIDES
The work of Thomas Aquinas may be distinguished from that of many of his 
contemporaries by his attention to the writings of Moses Maimonides (1135 - 
1204), a Jew, and Ibn Sina (Avicenna) (980 - 1037), a Muslim...Aquinas repsected 
Rabbi Moses and Avicenna as fellow travelers in an arduous intellectual attempt 
to reconcile the horizons of philosophers of ancient Greece, notably Aristotle, 
with those reflecting a revelation originating in ancient Israel, articulated 
initially in the divindely inspirted writings of Moses.
[source: Cambridge Companion to Augustine, p. 60]

CONTEMPORARY CHRISTIAN THINKERS IN EUROPE DEEPLY INFLUENCED BY MUSLIM THINKER IBN RUSHD
His conteporaries, especially in Paris, were responsive to the work of another 
Muslim, Ibn Rushd (Averroes) (1126 - 1198), for his rendition of the 
philosophical achievements of Aristotle, but Aquinas's relation to Averroes and 
to those who took their lead from him was far more ambivalent.
[source: Cambridge Companion to Augustine, p. 60]