Answer: isman

AnswerCrossword Clue
ISMAN"What a piece of work ..": Shak.
ISMAN"What .... in nature?": Pascal
ISMAN"What ..?": Twain dialogue
ISMAN"The proper study of mankind ...."
ISMAN"What ...?" (Mark Twain essay)
ISMAN'What a Piece of Work --' ('Hair' song)
ISMAN"What a piece of work ...!": "Hamlet"
ISMAN"What a Piece of Work ..." ("Hair" song)
ISMAN.... an ape or an angel? : Disraeli