There is not a single one of us who has made it out of a teacher preparation program without being asked to form and pen our educational philosophy. I still have my original. It is not that I now disagree with anything I wrote back in 1994 it is just that now I have a boat load of experience to back up every bullet point. Also, I'd add a few pretty important ideas to my own philosophy as it was originally written.
One thing that is really hard for me as an educator is having strong convictions and then being asked to use methods that are not aligned with my educational philosophy. As I write this, I know that I must sound like an insubordinate know it all to some. Really, that is not my intention. I don't ever want to be insubordinate. So instead, I find some kind of hybrid compromise so that I'm still technically following district mandates but yet I don't feel like I've sold my soul. There are three areas where I've really struggled.