Which sentence in this excerpt from George Bernard Shaw’s Pygmalion reveals that Henry Higgins is proud to be an English speaker?
THE NOTE TAKER: A woman who utters such depressing and disgusting sounds has no right to be anywhere—no right to live. Remember that you are a human being with a soul and the divine gift of articulate speech: that your native language is the language of Shakespear [sic] and Milton and The Bible; and don't sit there crooning like a bilious pigeon.

THE FLOWER GIRL: (quite overwhelmed, and looking up at him in mingled wonder and deprecation without daring to raise her head): Ah—ah—ah—ow—ow—oo!

THE NOTE TAKER (whipping out his book): Heavens! what a sound! (He writes; then holds out the book and reads, reproducing her vowels exactly) Ah—ah—ah—ow—ow—oo!

THE FLOWER GIRL (tickled by the performance, and laughing inspite of herself): Garn!

THE NOTE TAKER: You see this creature with her kerbstone English: the English that will keep her in the gutter to the end of her days. Well, sir, in three months I could pass that girl off as a duchess at an ambassador's garden party. I could even get her a place as lady's maid or shop assistant, which requires better English. That's the sort of thing I do for commercial millionaires. And on the profits of it I do genuine scientific work in phonetics, and a little as a poet on Miltonic lines.