We do have to use our minds as far as they will take us, yet acknowledging that they cannot take us all the way.
We can give a child a self-image. But is this a good idea? Hitler did a devastating job at that kind of thing. So does Chairman Mao. … I haven't defined a self, nor do I want to. A self is not something static, tied up in a pretty parcel and handed to the child, finished and complete. A self is always becoming.

Section 1.10 - The Crosswicks Journal - A Circle of Quiet (1972)