The “two witnesses” are my view of myself and others’ view of me. The “principal one” is my view of myself. This slogan reminds me that I’m the only one who really knows myself, whether it’s the parts of myself that I like and want to show off to the world or the unpleasant parts of myself I would rather hide as deeply as possible. While I pay most attention to my own perceptions, it is also important to openly receive feedback from others, which helps me see my blind spots. It’s also an opportunity to learn what is precious to the people in my life, because what they tell me is ultimately about them, not me.