If a man is a gentleman, he knows quite enough, and if he is not a gentleman, whatever he knows is bad for him.
 Oscar Wilde, The Picture of Dorian Gray (1890). copy citation

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Author Oscar Wilde
Source The Picture of Dorian Gray
Topic gentleman
Date 1890
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/174/174-h/174-h.htm

Context

“"Well, I can tell you anything that is in an English Blue Book, Harry, although those fellows nowadays write a lot of nonsense. When I was in the Diplomatic, things were much better. But I hear they let them in now by examination. What can you expect? Examinations, sir, are pure humbug from beginning to end. If a man is a gentleman, he knows quite enough, and if he is not a gentleman, whatever he knows is bad for him." "Mr. Dorian Gray does not belong to Blue Books, Uncle George," said Lord Henry languidly. "Mr. Dorian Gray? Who is he?" asked Lord Fermor, knitting his bushy white eyebrows. "That is what I have come to learn, Uncle George.” source