I say, the most ungentlemanly trick a man can be guilty of is to come among the members of his profession with innovations which are a libel on their time-honored procedure.
Those who are hostile to me are glad to believe any libel uttered by a loose tongue against me.
There are no more uses of "libel" in the book.
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The newspaper was accused of libeling him
In a landmark ruling, New York Times v. Sullivan changed the standard for defamation and libel by requiring plaintiffs to prove malice—that is, evidence of actual knowledge on the part of the publisher that a statement is false.