This is one of the best comics from one of my favourite webcomics (not that I frequent many). I don’t think I could put it better. Express yourself; defend your beliefs; if they are indefensible, move on from them.
All photos and text, unless otherwise credited, are by David Robertson and are available for you to use under a Creative Commons - Attribution - Non-Commercial license. If you want to purchase or derive commercial work from any content, please contact me using the details on my About page.