Wow, now that is some useful advice. It is just that us people, me included, we love to be stubborn about the things we’re certain about. Certainty is when we feel we have the right to be stubborn.
Add to that that we’re certain only about certain things and the thing gets even more complex. Amirite?
My impression is we’re inclined to mistakenly believe the exact opposite: that certainty is eternal, and stubbornness ephemeral. And this is because we treat stubbornness as a mood, instead of the behaviour which it is. And then we put the equal sign between truth and certainty; things I’m certain about must be true, or else I’m wrong, a false assumption of uncertainty.
Actually, uncertainty is to blame for all our stubbornness. This black sheep cousin of reason.