It is research

From A treasury of American anecdotes; sly, salty, shaggy stories of heroes and hellions, beguilers and buffoons, spellbinders and scapegoats, gagsters and gossips, from the grassroots and sidewalks of America by Benjamin Albert Botkin.   

Nicholas Murray Butler and Professor Brander Matthews of Columbia University were having a conversation and Professor Matthews was giving his ideas as to plagiarism, from an article of his own on that subject. “In the case of the first man to use an anecdote,” he said, “there is originality; in the case of the second, there is plagiarism; with the third, it is lack of originality; and with the fourth it is drawing from a common stock.” “Yes,” broke in President Butler, “and in the case of the fifth, it is research.”