It is impossible that there should be inhabitants on the opposite side of the Earth, since no such race is recorded by Scripture among the descendants of Adam.
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.
The Church even now is the kingdom of Christ and the kingdom of heaven. Accordingly, even now His saints reign with Him, though otherwise than as they shall reign hereafter; and yet, though the tares grow in the Church along with the wheat, they do not reign with Him. For they reign with Him who do what the apostle says, 'If you are risen with Christ, mind the things which are above, where Christ sits at the right hand of God. Seek those things which are above, not the things which are on the earth'.
Although among heretics and schismatics there is the same Baptism, nevertheless, the remission of sins is not operative among them because of the very rottenness of discord and wickedness of dissension ... Baptism was in them, but it did not profit them outside the Church ... Outside the Church, Baptism works death because of discord.