What acclaim did Booker receive for his Atlanta Exposition Address?

From the text:

The papers in all parts of the United States published the address in full, and for months afterward there were complimentary editorial references to it. Mr. Clark Howell, the editor of the Atlanta Constitution, telegraphed to a New York paper, among other words, the following, "I do not exaggerate when I say that Professor Booker T. Washington's address yesterday was one of the most notable speeches, both as to character and as to the warmth of its reception, ever delivered to a Southern audience. The address was a revelation. The whole speech is a platform upon which blacks and whites can stand with full justice to each other."

The Boston Transcript said editorially: "The speech of Booker T. Washington at the Atlanta Exposition, this week, seems to have dwarfed all the other proceedings and the Exposition itself. The sensation that it has caused in the press has never been equalled."