“Say over again, and yet once over again, / That thou dost love me.”
This quote has no known author and is recorded as an anonymous proverb.
About this quote
Barrett Browning wrote the sonnets during her courtship of Robert Browning and sent them to him before they were published, which is why the collection is called a translation from the Portuguese although it is not. The whole poem asks for one reassurance to be repeated, and it has stayed in the repertory of letters and cards ever since 1850.
Source: Sonnets from the Portuguese