What are the main themes in Romeo and Juliet?

Love: Romantic love is the dominant theme in the play. The powerfulness and blindness of love is paramount to all concerned, and that is especially true for Romeo and Juliet.
Us vs. Them: The young lovers’ refusal to conform is the other dominant theme. Although society presents many obstacles and reasons why Romeo and Juliet cannot be together, the pair pursues their own happiness.
Fate: We know from the beginning that the lovers are doomed. As much as they may try to thwart fate, their destinies are predetermined.