Did William Shakespeare say “We know what we are but know not what we may be.”?

Did William Shakespeare say “We know what we are but know not what we may be.”?

Found word for word. Yes. The text appears in works attributed to William Shakespeare. Source and location below.

King. How do you, pretty lady? Oph. Well, God dild you! They say the owl was a baker's daughter. Lord, we know what we are, but know not what we may be. God be at your table! King. Conceit upon her father. Oph. Pray let's have no words of this; but when they ask, you what it means, say you this:
The Complete Works of William Shakespeare — William Shakespeare, Scene V. Elsinore. A room in the Castle. · ¶1361 · Public domain (US), Project Gutenberg #100 · source

All checked quotes → · Method on GitHub