Like most people of my age, I feel a longing for what is lost and cannot be restored. But if the happy pursuits and casual beauty of youth prove ephemeral, something better can endure, and endure until our last moment on earth. And that is the honor we earn and the love we give if at a moment in our lives we sacrifice for something greater than self-interest. We cannot choose the moments. They arrive unbidden by us. We can choose to let the moments pass, and avoid the difficulties they entail. But the loss we would incur by that choice is much dearer than the tribute we once paid to vanity and pleasure.