Found - a collection of quotations from C.E. Jerningham -
The Maxims of Marmaduke (London: Methuen & Co, 1909). A small book,it is signed by the author on the front endpaper: 'To Jimmy Tuohy from his much attached old friend, Charles Ed. Jerningham, Saturday, October, 23/09 14 Pelham Crescent, London S. W.' Charles Edward Jerningham (1854-1921) was the younger son of a peer and as such forced to go out and make a living. Being literate and intelligent he chose journalism. He was known as a cheery soul, a clubman full of good will to his fellow men. His maxims are slightly reminiscent of Saki but without his bite. They conjure up a vanished world - after Victoria but before the Titanic went down and before
The Forsyte Saga. There is not a vast amount about him online but the obituary appended at the end is useful:
He who is drunk in a first-class carriage has had a fit; he who has a fit in third-class is drunk.
Beware of the rich; the poor will do much for money; the rich will do anything for more money.
It is not our bitter enemies that do us the most harm; it is our bitter friends.
When two laugh it is certain a misfortune has happened - to a third.
Were it not for the misfortunes of our neighbours, life would be positively unbearable.
In England, all are educated now, except the educated classes.
