No, Sir, it is a good thing; there is a community of mind in it. Classical quotation is the parole of literary men all over the world. – Samuel Johnson, quoted in The Life of Samuel Johnson by James Boswell, Volume II
It has been said that death ends all things. This is a mistake. It does not end the volume of practical quotations, and it will not until the sequence of the alphabet is so materially changed as to place D where Z now stands. – Harper’s Bazar: Facetiæ, September 1, 1888, quoted in A Dictionary of

