"O, swear not by the moon, th' inconstant moon" (Act 2, Scene 2)
-Juliet replies to Romeo's sudden declarations of love in the Capulet garden, asking Romeo to be constant/ committed to his love
-Shakespeare uses celestial imagery here --> she requests Romeo swears his love by something more constant than the changing nature of the stars and planets
-Juliet: presented as rational/ sensible, not leaving her fate to the stars and planets.
Contextually, this imagery challenges Elizabethan audiences who regularly made decisions based on stars and planets --> astrology held high relevance