(Know, Don't Know) x (Know, Don't Know)
Identify “Know/Know”, “Know/Don’t Know”, “Don’t Know/Know”, and “Don’t Know/Don’t Know” about your vision.
Without knowledge about the dislocation theory, people could make an iron bridge.
https://en.wikipedia.org/wiki/The_Iron_Bridge
Through "διαλεκτική, dialektike", sometimes we can discover something important.
Sometimes we are in ᾰ̓πορῐ́ᾱ, aporíā.
https://en.wikipedia.org/wiki/Plato
An interchange between the transient and the immutable is central to the soul of haiku.
https://ja.wikipedia.org/wiki/松尾芭蕉