Please check the following paragraphs. Which is better?
1. Our lives in the world are just like a drop from a limitless ocean. Maybe we have tried to change something. Eventually, we found that our abilities is limited and cannot do anything to help. Therefore, when we are helpless, be an onlooker.

2. Our lives in the world are just like a drop in the sea. Maybe we have tried to change something. Eventually, we found that we are powerless and cannot do anything to help. Therefore, when we are helpless, be an onlooker.