If they don’t know something, they admit that they don’t know it. They know that they aren’t perfectionists. Boasting is not what they are known for. They are very self-aware and know their strengths and their shortcomings.
6. For them, the present is a precious gift, and the past a lesson
They are never stuck in the past. Even if they are, they constantly make attempts to move on. Learning from their past mistakes is how they move forward without being stagnant.