The Knower (n.) does not know both things and himself; the whole field "I-know-this" knows itself.
6 definitions
Knower (n.) can know other things but never make himself its object, as fire burns other things but cannot burn itself.
Knower (n.) confronting the world and the word standing apart from events are twin illusions that stand or fall together.
Knower (n.) is a grammatical convention, not a fact: raining needs no rainer and clouding no clouder, so why should knowing need someone who knows?
The Knower (n.) can himself become the object of a psychology — a knowing of the knower and an experiencing of the experiment, beside the classical psychology that studies only other people and things.
Knower (n.) is demanded by grammar, not by experience: "a light flashed" is easier to see through, since the flashing simply is the light.