Oral Literature is kind of like slam poetry where the words are spoken compared to written literature where it was written to be read yourself instead of reading out loud
It's pretty much saying that we humans have one of the greatest traits or freedoms that an AI would never be able to have, the ability to change how we are feeling at any given point of time.
Obstinate means: stubbornly refusing to change one's opinion or chosen course of action, despite attempts to persuade one to do so. So another word for Obstinate is Stubborn