Instruct: Classify Amazon reviews into positive or negative sentiment
Query: iridological....dogma

I studied Iridology for many years and acheived diplomas in Holistic and integral Iridology principles and practices.....there is so much "dogma" in the world of iridology...so much passed down "non"- sense....that at the end of the day one is left with a new agey worthless doctrine that is as about as much use as listening top a priest or churchgoer.....in other words ....worthless