Love is blind 
“The Merchant of Venice,” “Henry V,” and “The Two Gentlemen of Verona”

In a pickle 
“The Tempest”

Green-eyed monster 
“Othello”

Foregone conclusion 
“Othello”

Cold-blooded 
“King John”

Salad days 
“Antony and Cleopatra”

Break the ice 
“The Taming of the Shrew”

As dead as a doornail 
“Henry VI, Part II”

Cruel to be kind 
“Hamlet”

Knock, knock! Who’s there? 
“Macbeth”

One fell swoop 
“Macbeth”

The world is your oyster 
“The Merry Wives of Windsor”