In the above lines, Shakespeare portrays the gift of the poet: the ability to shape unique thoughts into memorable words on paper. The theft of someone's words or thoughts—plagiarism—has long been a concern. Historically, Timae1(p1056) attributed the term plagiarism to Empedocles (circa 490-430 BC). At that time the Greek word plagios, which denotes obliquity, already had the sense of being "morally crooked, practicing double-talk."1(p1410) (Conversely, in contemporary English usage, the expression "a straight arrow" indicates moral qualities.2) Nevertheless, many investigators and many current English dictionaries3,4 contend that the term plagiarism comes from the Latin plagiarius, meaning kidnapper. However, in classical Latin, plagiarius never refers to a plagiarist; its first use was metaphorical in Martial's epigrams5; the next use of this metaphor was by Lorenzo Valla (Elegantiae, preface of Book 2) to refer to someone who used his work.6 Thus, ironically, the etymology of plagiarism is often wrongly attributed.