Though there are very many nations all over the earth, ...there are no more than two kinds of human society, which we may justly call two cities, ...one consisting of those who live according to man, the other of those who live according to God ....To the City of Man belong the enemies of God, ...so inflamed with hatred against the City of God.
Your first task is to be dissatisfied with yourself, fight sin, and transform yourself into something better. Your second task is to put up with the trials and temptations of this world that will be brought on by the change in your life and to persevere to the very end in the midst of these things.
It is not earthly riches which make us or our sons happy; for they must either be lost by us in our lifetime, or be possessed when we are dead, by whom we know not, or perhaps by whom we would not.
One generation and another generation; the generation by which we are made the faithful, and are born again by baptism; the generation by which we shall rise again from the dead, and shall live with the Angels for ever.
Every morning you put on your clothes to cover your nakedness and protect your body from inclement weather. Why don't you also clothe your soul with the garment of faith? Remember each morning the truths of your creed, and look at yourself in the mirror of your faith. Otherwise, your soul will soon be naked with the nakedness of oblivion.
This entire most beautiful order of good things is going to pass away after its measure has been exhausted; for both morning and evening were made in them.
When all is said and done, is there any more wonderful sight, any moment when man's reason is nearer to some sort of contact with the nature of the world than the sowing of seeds, the planting of cuttings, the transplanting of shrubs or the grafting of slips?
Divine Scripture is wont to frame, as it were, allurements for children from the things which are found in the creature; whereby, according to their measure, and as it were by steps, the affections of the weak may be moved to seek those things that are above, and to leave those things that are below. But the same Scripture rarely employs those things which are spoken properly of God, and are not found in any creature; as, for instance, that which was said to Moses, I am that I am; and, I Am has sent me to you."