Beyond Good and Evil by Friedrich Nietzsche Chapter 1 Page 39

“one” is precisely the famous old “ego,” is, to put it mildly, only a supposition, an assertion, and assuredly not an “immediate certainty.” After all, one has even gone too far with this “one thinks” — even the “one” contains an INTERPRETATION of the process, and does not belong to the process itself.

One infers here according to the usual grammatical formula — ”To think is an activity; every activity requires an agency that is active; consequently”... It was pretty much on the same lines that the older atomism sought, besides the operating “power,” the material particle wherein it resides and out of which it operates — the atom. More rigorous minds, however, learnt at last to get along without this