@Frank Apisa,
If you do not know that Spendius exists...And think that the possibility of existence is possible...What would you say that you DO know? Nothing? Or total Uncertainty? Is this fair?
Then you know things you do not know...
Not that you do not know things because no one knows them...
Or to help you understand...
You understand things about yourself...that you currently do not know about yourself...But you already know them...And those thoughts are already there...You just don't fully understand them yet...
Or..
You don't understand your thoughts...Because you do not know things about yourself..because you are certain that you do not know or understand the ways you think...But you already do...And you think that no one else does...as well...but it is not correct...