“The medievals loved to say that God wrote two books: nature and Scripture. And since he is the author of both books, and since this Teacher never contradicts himself, these two books never contradict each other. And since this God who never contradicts himself also gave us the two truth detectors, faith and reason, it follows that faith and reason, properly used, never contradict each other. Therefore, all heresies are contrary to reason. Not all the truths of faith can be proved by reason, but all arguments against the truths of faith can be disproved by reason.”
“Since faith rests upon infallible truth, and since the contrary of a truth can never be demonstrated, it is clear that the arguments brought against faith cannot be demonstrations, but are difficulties that can be answered.”
“Do not think that we say that these things are only to be received by faith, but also that they are to be asserted by reason. For indeed it is not safe to commit these things to bare faith without reason, since assuredly truth cannot be without reason.”
“He who believes God, recognizes Him as true and faithful, and himself as a liar; for he mistrusts his own thinking as false, and trusts the Word of God as being true, though it absolutely contradicts his own reasoning.”
“Faith and reason are like two wings on which the human spirit rises to the contemplation of truth; and God has placed in the human heart a desire to know the truth- in a word, to know himself- so that, by knowing and loving God, men and women may also come to the fullness of truth about themselves.”
“Faith and Reason are like two wings of the human spirit by which is soars to the truth.”