US-P15.048ab ।US-P15.048cd ॥
In plain words
A lodestone moves iron without stirring at all; in just that way the ātman, making no effort, is still called the knower, still called the doer. So in its own nature the Self, by itself, is neither something you can know nor something you cannot.
Close to the Sanskrit
The knower, though effortless, likewise — the conscious one — would be an agent, like the lodestone. Therefore the Self, in its own nature, is by itself neither knowable nor unknowable.