An Jing actually believes that perfection doesn't exist.
How could perfection possibly exist in this world? Every self of the next second is stronger than the current self. The future self, with broader knowledge, facing some problems, will be able to find even better answers than the ones that the current self can offer.
As long as time progresses and wisdom accumulates, as long as power is refined and steadily amassed, the current self will never be considered perfect.
However.
An Jing believes that, although perfection might not exist, the pursuit of perfection is, in itself, a perfect state.
Just like the current self.