Shakespeare. Romeo says this in Romeo and Juliet Act 1 Scene 1. Romeo says this to his friend Benvolio who has just suggested that since he can't have Juliet he should look at other beautiful girls. Romeo's response means that basically looking at other girls will just remind him of how much more beautiful Juliet is.
Answer is abab bcoz u have to see last word of every line name the first sound as A which is sun and in second line name second sound of red as B , in 3rd line again sound of 1st line repeated i.e dun so its again A and similarly in 4th line head gives same sound as red gives in 2nd line so again B.
FINAL scheme is ABAB
To interpret the theme in a story, a reader should study repeating ideas.