Thomas Aquinas

"Faith has to do with things that are not seen and hope with things that are not at hand."

"Hold firmly that our faith is identical with that of the ancients. Deny this, and you dissolve the unity of the Church."

"If forgers and malefactors are put to death by the secular power, there is much more reason for excommunicating and even putting to death one convicted of heresy."

"If, then, you are looking for the way by which you should go, take Christ, because He Himself is the way."

"The principal act of courage is to endure and withstand dangers doggedly rather than to attack them."

"The truth of our faith becomes a matter of ridicule among the infidels if any Catholic, not gifted with the necessary scientific learning, presents as dogma what scientific scrutiny shows to be false."

"To bear with patience wrongs done to oneself is a mark of perfection, but to bear with patience wrongs done to someone else is a mark of imperfection and even of actual sin."

"To live well is to work well, to show a good activity."

"To one who has faith, no explanation is necessary. To one without faith, no explanation is possible."