1. Is personality stable or not?

2. What mechanisms make it stable or unstable? This means what things work to make our personality either stable or unstable.

3. How does a sense of self and a theory of mind relate to stability or instability? Or does it?

4. Is it possible for people to truly change their personalities? Is it possible for people to change themselves? If so, how (you do not have to be technical here or site literature, but you do need to have an argument.) If not, why? Feel free to use any examples