Romans

I was reading Romans straight through for this class, and something stuck out to me that I had never felt like I read before. In Romans 6:21, Paul talks about serving sin and the fruits of that being death.
I thought about all the works and the lives that people live that focuses on sin and serving sin instead of righteousness. All of that adds up to nothing, and no fruit is produced that pleases God. It is amazing that people work so hard for nothing, when the Bible teaches that the only way to a truly worth-while life is in God.