"It is a common error, and the greater and more mischievous for being so common, to believe that repentance best becomes and most concerns dying men. Indeed, what is necessary every hour of our life is necessary in the hour of death too, and as long as one lives he will have need of repentance, and therefore it is necessary in the hour of death too; but he who hath constantly exercised himself in it in his health and vigor, will do it with less pain in his sickness and weakness; and he who hath practiced it all his life, will do it with more ease and less perplexity in the hour of his death."

Source: In James Boswell 'The Life of Samuel Johnson' (1791) vol. 2, p. 10 (February 1766)