Are you open to the possibility that even your deeply held beliefs, like “veganism is unhealthy” could be wrong? I have very frequently blundered into defending a false assertion for far longer than I should have, especially in work settings where you never know when you might meet someone much, much more well informed about a subject than yourself.

That burned me a lot when I was younger. Intellectual humility has never failed to serve me. I wish I was more humble about my strongly held opinions (that I thought were facts) when I was younger.