Justice is a certain rectitude of mind whereby a man does what he ought to do in the circumstances confronting him.

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.

For loving draws us more to things than knowing does, since good is found by going to the thing, whereas the true is found when the thing comes to us.

It is altogether unlawful to kill oneself... Wherefore suicide is contrary to the inclination of nature, and to charity whereby every man should love himself... Life is God's gift to man, and is subject to His power, Who kills and makes to live. Hence whoever takes his own life, sins against God... for it belongs to God alone to pronounce sentence of death and life.

Temperance is simply a disposition of the mind which binds the passion.

The celestial bodies are the cause of all that takes place in the sublunar world.

A man does not always choose what his guardian angel intends.