Inspired by watching The Drama.
I think there is an intrinsic fabric to one’s being that is only semi-plastic. As in, you are who you are, ± maybe 20% or so. This could maybe be called one’s core values and is what is described when someone talks about what kind of “person” someone is. This fundamentally drives how you want to act and behave, but might not necessary be the actual driving factor behind behaviour as temporary values could be instantaneous motivators (needing to provide for a family, etc).