Some of the comments here discuss humbleness in general, which is different from what this post is about. The article talks about being intellectually humble, and defines it as the ability to self reflect and accept the possibility that you are wrong.
It is different from the standard context of being humble, which is usually to avoid bragging about own's success. Being able to accept own's mistakes, even when you're sure you're right, is another, big, step forward.
It is different from the standard context of being humble, which is usually to avoid bragging about own's success. Being able to accept own's mistakes, even when you're sure you're right, is another, big, step forward.