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. Saint Thomas Aquinas
Three conditions are necessary for Penance: contrition, which is sorrow for sin, together with a purpose of amendment; confession of sins without any omission; and satisfaction by means of good works. Saint Thomas Aquinas
Three things are necessary for the salvation of man: to know what he ought to believe; to know what he ought to desire; and to know what he ought to do. Saint Thomas Aquinas
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. Saint Thomas Aquinas
We can't have full knowledge all at once. We must start by believing; then afterwards we may be led on to master the evidence for ourselves. Saint Thomas Aquinas