Human law cannot punish or forbid all evil, since while doing away with evils it would do away with many good things, which would hinder the advance of the common good.
That your enemies have been created is God's doing; that they hate you and wish to ruin you is their own doing. What should you say about them in your mind? "Lord be merciful to them, forgive them their sins, put the fear of God in them, change them!" You are loving in them not what they are, but what you would have them to become.
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.