Perfection of moral virtue does not wholly take away the passions, but regulates them.

Clearly the person who accepts the Church as an infallible guide will believe whatever the Church teaches.

If the highest aim of a captain were to preserve his ship, he would keep it in port forever.

Pain itself can be pleasurable accidentally in so far as it is accompanied by wonder, as in stage-plays; or in so far as it recalls a beloved object to one's memory, and makes one feel one's love for the thing, whose absence gives us pain. Consequently, since love is pleasant, both pain and whatever else results from love, in so far as they remind us of our love, are pleasant.

It is necessary to posit something which is necessary of itself, and has no cause of its necessity outside of itself but is the cause of necessity in other things. And all people call this thing God.

Distinctions drawn by the mind are not necessarily equivalent to distinctions in reality.

Peace is the work of justice indirectly, in so far as justice removes the obstacles to peace; but it is the work of charity (love) directly, since charity, according to its very notion, causes peace.