Phrases attributed to him include ‘Blinking idiot’, ‘Brave new world’, ‘Brevity is the soul of wit’, ‘In my heart of hearts’, ‘Jealousy is the green-eyed monster’, ‘Neither rhyme nor reason’, ‘Own flesh and blood’, ‘Too much of a good thing’ and ’What’s done is done’. Chances are you were quoting Shakespeare before you saw one of his plays, or opened this book.