You can believe whatever you choose, but be careful. If you belief a lie, harm and then pain will ensue.

God's commandments do not contradict themselves. Therefore, Romans 14 cannot be interpreted the way you feel it should.

Also, the wordage is very precise in that verse, and you have to keep it in context. I would recommend reading a wide variety on the subject and you may eventually catch on.

Paul is not contradicting the Law. The key is to take the entire thought in context. I'll leave that to you as homework.