I used to be a know-it-all with an opinion in everything. Started out at a NH barn which taught their students the opinion that all "traditional" horsemanship methods are bad, bits are by default cruel, and so on. So I was never too short on words to share about how everyone was ignorant or too hard on their horses, except, of course, those who followed the NH principles. Oh my. I still blush remembering that phase.
After things started going wrong in that barn, I bought a horse from them and moved away to a different barn, where people with NH and "traditional" backgrounds lived and trained together in harmony. That opened my eyes and I learned to receive every piece of information with gratitude, as I understood how actually little I knew and how narrowly I was taught. Now I'm trying to catch up, but it will always be a reminder to me - never assume you're completely right. And, if you feel very confident that you are, think it over. Twice. With an honest and humble attitude.
I have come a long way, to surrender my shadow to the shadow of my horse.