I remember seeing the following priceless put-down in a review:
There is much here that is new, and much that is true. However, the true stuff is old hat, and the new stuff is false.
This appears to have been a paraphrase. Winston Churchill, in Great Contemporaries (London & New York, 1937) p. 250 quotes Arthur Balfour as having said:
…there were some things that were true, and some things that were trite; but what was true was trite, and what was not trite was not true…
Did Balfour actually say this? A similar phrase, in a different context, appears in an 1877 theological tract called “The Down Grade” by the English Baptist preacher Robert Shindler, published in his friend and mentor C. H. Spurgeon‘s journal The Sword and the Trowel (March 1887, p. 122):
But commonly it is found in theology that that which is true is not new, and that which is new is not true.
Tthe “Prince of Preachers” Spurgeon was legendary in his day and remains influential in Baptist circles to this day. It is quite possible that Balfour read the tract and absorbed the original phrase from there.