Schenck v. U.S., and "Two of the strongest expressions are said to be quoted respectively from well-known public men"

[Volokh, Eugene]

	In Schenck, Holmes writes, without citation, "But it is said,
suppose that that was the tendency of this circular, it is protected by
the First Amendment to the Constitution.  Two of the strongest
expressions are said to be quoted respectively from well-known public
men . . . ."  Could anyone quickly tell me who those public men were?
Inquiring minds want to know.  Many thanks,

	Eugene