From its premiere at the turn of the 17th century, Hamlet has remained Shakespeare's best-known, most-imitated, and most-analyzed play. The character of Hamlet played a critical role in Sigmund Freud's explanation of the Oedipus complex. Even within the narrower field of literature, the play's influence has been strong. As Foakes writes, "No other character's name in Shakespeare's plays, and few in literature, have come to embody an attitude to life ... and been converted into a noun in this way."