Faith is not fearful of reason; on the contrary, it seeks and trusts reason, since “the light of reason and the light of faith both come from God” and cannot contradict each other.
Francis I (b. 1936) Argentinian Catholic Pope (2013- ) [b. Jorge Mario Bergoglio]
Evangelii Gaudium, sec. 203 (24 Nov 2013)
(Source)
Quoted section is Thomas Aquinas, Summa contra Gentiles, I, 7.