Shalt see thy other daughter will use thee kindly, for, though she’s as like this as a crab’s like an apple, yet I can tell what I can tell.

– William Shakespeare

King Lear, Act 1, Scene 5. The Fool uses a simile to say that Lear’s daughters Regan and Goneril are as similiar as two crab apples. At this time Lear is negotiating his accommodations with his daughters and the negotiations are not going well.