For if it is not lawful to take the law into our own hands and slay even a guilty person, whose death no public sentence has warranted. Then certainly he who kills himself is a homicide, and so much the guiltier of his own death as he was more innocent of that offence for which he doomed himself to die.
Ignorance itself is without a doubt a sin for those who do not wish to understand; for those who, however, cannot understand, it is the punishment of sin.
Often a non-Christian knows something about the earth, the heavens, and the other parts of the world, about the motions and orbits of the stars and even their sizes and distances... and this knowledge he holds with certainty from reason and experience. It is thus offensive and disgraceful for an unbeliever to hear a Christian talk nonsense about such things, claiming that what he is saying is based in Scripture. We should do all that we can to avoid such an embarrassing situation, which people see as ignorance in the Christian and laugh to scorn.
Love and do what you want. If you stop talking, you will stop talking with love; if you shout, you will shout with love; if you correct, you will correct with love.
God's faithful servant has no desire for people to say or to give to him, or what he likes to hear or see, for his first and greatest aim is to hear what is most pleasing to God.
The same thing which is now called Christian religion existed among the ancients. They have begun to call 'Christian' the true religion which existed before.
He who devoutly hears holy Mass will receive a great vigor to enable him to resist mortal sin, and there shall be pardoned to him all venial sins which he may have committed up to that hour.