I never have found the perfect quote. At best I have been able to find a string of quotations which merely circle the ineffable idea I seek to express. – Attributed to Caldwell O’Keefe in The Trademark Reporter, Vol.93, 2003

A knowledge of general literature is one of the evidences of an enlightened mind; and to give an apt quotation at a fitting time, proves that the mind is stored with sentential lore that can always be used to great advantage by its possessor. – James Ellis, quoted in Day’s Collacon: An Encyclopædia of Prose Quota

[T]he governess… looked upon him [Mr. Swiveller] as a literary gentleman of eccentric habits, and of a most prodigious talent in quotation. – Charles Dickens, The Old Curiosity Shop, 1841

Whenever we would prepare the mind by a forcible appeal, an opening quotation is a symphony preluding on the chords whose tones we are about to harmonize. – Isaac D’Israeli, “Quotation,” A Second Series of Curiosities of Literature