"And to sink in it should you burden love,/Too great oppression for a tender thing" (I.iv.23-24)
This quote describes Mercutio's personality trait of giving meaningful advice. In this quote, Mercutio tells Romeo that if he cannot rise to the occasion, he will be a burden to the one he loves. it goes to show that Mercutio cares about his friend Romeo and his well being, and wishes that Romeo could be content.