The same divine authority that forbids the killing of a human being establishes certain exceptions, as when God authorizes killing by a general law or when He gives an explicit commission to an individual for a limited time.
The mind commands the body and is instantly obeyed. The mind commands itself and meets resistance. The mind commands the hand to move, and it so easy that one hardly distinguishes the order from its execution. Yet mind is mind and hand is body. The mind orders the mind to will. The recipient of the order is itself, yet it does not perform it.
I do not doubt that all those who have received Baptism anywhere and from whomever do have Baptism, as long as it was consecrated with the words of the Gospel and they received it without pretence on their part and with some degree of faith. However, it would not avail them for their spiritual salvation if they were lacking in that charity by which they might be implanted in the Catholic Church.
The good Christian should beware the mathematician and all those who make empty prophecies. The danger already exists that the mathematicians have made a covenant with the devil to darken the spirit and to confine man in the bonds of hell.
For why, my brothers and sisters, would you rejoice in silver? Either your silver will perish, or you will, and no one knows which will perish first. For neither can you remain here always, nor can silver remain here always; so also with gold, wardrobes, houses, money, real estate-and in the end, even the light by which we enjoy all these things. So do not be willing then to rejoice in such things as these. Rejoice instead in the light that has no setting; rejoice in the dawn which no yesterday precedes, and no tomorrow follows.