Answer: Juliet; she is saying that true understanding is enriched by reality and worth more than outward appearances.
Step-by-step explanation:
Juliet was talking to Romeo in this instance and trying to tell him that it was easy to speak words but that for those words to be properly understood, action must follow them.
In other words she was telling him that to truly understand something, actions must back it up. She then goes on to say to him that the love she has is so much that it has made her feel more wealthy.