Final answer:
Macbeth says the line "So foul and fair a day I have not seen" in Shakespeare's play Macbeth. It reflects the themes of the play.
Step-by-step explanation:
The line "So foul and fair a day I have not seen" is spoken by Macbeth in Shakespeare's play Macbeth. This quote is from Act 1, Scene 3, when Macbeth and Banquo encounter the three witches who prophesy his future kingship. The line suggests that the day is both beautiful and ominous, reflecting the themes of the play.
Learn more about Macbeth