9 No good counsel then has avarice given. See she has enjoined you to keep, yet has not found a place where you may keep. Let her give also her next advice, “Consult for the future.” For what future? For a few and those uncertain days. She says, “Consult for the future,” to a man who, it may be, will not live even till tomorrow. But suppose him to live as long as avarice thinks he will, not as long as she can prove, or assure him, or have any confidence about, but suppose him to live as long as she thinks, that he grow old and so come to his end: when he is even now bent double with old age, and leaning on his stick for support, still is he seeking gain, and hears avarice saying still, “Consult for the future.”
For what future? When he is even at his last breath she speaks. She says, “for your children's sake.” Would that at least we did not find the old men who had no children avaricious. Yet to these even, to such as these even, who cannot even excuse their iniquity by any empty show of natural affection, she ceases not to say, “Consult for the future.” But it may be that these will soon blush for themselves; so let us look to those who have children, whether they are certain that their children will possess what they shall leave?
Let them observe in their lifetime the children of other men, some losing what they had by the unjust violence of others, others by their own wickedness consuming what they possessed; and they remain in poor estate, who were the children of rich men. Cease then to be the home-born slaves of avarice. But a man will say, “My children will possess this.” It is uncertain; I do not say, it is false, but at best, it is uncertain. But now suppose it to be certain, what do you wish to leave them? What you have gotten for yourself. Assuredly what you have gotten was not left you, yet you have it. If you have been able to get possession of what was not left to you, then will they also be able to get what you shall not leave to them.
Source: Sermons on Selected Lessons of the New Testament (New Advent)