"The Doom of the World," they said, "One alone can change who made it. And were you so to voyage that escaping all deceits and snares you came indeed to Aman, the Blessed Realm, little would it profit you. For it is not the land of Manwë that makes its people deathless, but the Deathless that dwell therein have hallowed the land; and there you would but wither and grow weary the sooner, as moths in a light too strong and steadfast."
    But the King said: "And does not Eärendil, my forefather, live? Or is he not in the land of Aman?"
    To which they answered: "You know that he has a fate apart, and was adjudged to the Firstborn who die not; yet this also is his doom that he can never return to mortal lands. Whereas you and your people are not of the Firstborn, but are mortal Men as Ilúvatar made you. Yet it seems that you desire now to have the good of both kindreds, to sail to Valinor when you will, and to return when you please to your homes. That cannot be. Nor can the Valar take away the gifts of Ilúvatar. The Eldar, you say, are unpunished, and even those who rebelled do not die. Yet that is to them neither reward nor punishment, but the fulfilment of their being. They cannot escape, and are bound to this world, never to leave it so long as it lasts, for its life is theirs. And you are punished for the rebellion of Men, you say, in which you had small part, and so it is that you die. But that was not at first appointed for a punishment. Thus you escape, and leave the world, and are not bound to it, in hope or in weariness. Which of us therefore should envy the others?"
    And the Númenóreans answered: "Why should we not envy the Valar, or even the least of the Deathless? For of us is required a blind trust, and a hope without assurance, knowing not what lies before us in a little while. And yet we also love the Earth and would not lose it."
    Then the Messengers said: "Indeed the mind of Ilúvatar concerning you is not known to the Valar, and he has not revealed all things that are to come. But this we hold to be true, that your home is not here, neither in the Land of Aman nor anywhere within the Circles of the World. And the Doom of Men, that they should depart, was at first a gift of Ilúvatar. It became a grief to them only because coming under the shadow of Morgoth it seemed to them that they were surrounded by a great darkness, of which they were afraid; and some grew wilful and proud and would not yield, until life was reft from them. We who bear the ever-mounting burden of the years do not clearly understand this; but if that grief has returned to trouble you, as you say, then we fear that the Shadow arises once more and grows again in your hearts. Therefore, though you be the Dúnedain, fairest of Men, who escaped from the Shadow of old and fought valiantly against it, we say to you: Beware! The will of Eru may not be gainsaid; and the Valar bid you earnestly not to withhold the trust to which you are called, lest soon it become again a bond by which you are constrained. Hope rather that in the end even the least of your desires shall have fruit. The love of Arda was set in your hearts by Ilúvatar, and he does not plant to no purpose. Nonetheless, many ages of Men unborn may pass ere that purpose is made known; and to you it will be revealed and not to the Valar."

...

    But Atanamir was ill pleased with the counsel of the Messengers and gave little heed to it, and the greater part of his people followed him; for they wished still to escape death in their own day, not waiting upon hope. And Atanamir lived to a great age, clinging to his life beyond the end of all joy; and he was the first of the Númenóreans to do this, refusing to depart until he was witless and unmanned, and denying to his son the kingship at the height of his days. For the Lords of Númenor had been wont to wed late in their long lives and to depart and leave the mastery to their sons when these were come to full stature of body and mind.

...

    But for all this Death did not depart from the land, rather it came sooner and more often, and in many dreadful guises. For whereas aforetime men had grown slowly old, and had laid them down in the end to sleep, when they were weary at last of the world, now madness and sickness assailed them; and yet they were afraid to die and go out into the dark, the realm of the lord that they had taken, and they cursed themselves in their agony.

-- J.R.R. Tolkien, Akallabęth