Mainly due to the social interaction with others. Also, because of how it is often shown to an audience of people.
Answer: they are equal to one beat.
Explanation: 2 eighth notes are equal to a quarter note.
1) He did jobs no body else wanted do
2) He helped people escape
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As a more simple answer to your question, Shakespeare shows that young love is an 'all or nothing' proposition. When Romeo is told by the Friar that his punishment will be banishment, and not death, Romeo replies that there is no world for him outside Verona.
There is also a measure of idealism in their love. Juliet and Romeo refuse to bend to the reality of their family situation, believing that love will conquer all.