A new Forever stamp issued by the USPS has Maya Angelou’s face on it. Beside her face is the name “Maya Angelou.” Underneath the name “Maya Angelou” is the quote “A bird doesn’t sing because it has an answer, it sings because it has a song.”

But there’s one problem with the stamp that uses Angelou’s face and name: she isn’t responsible for the quote. Joan Walsh Anglund is.