He had always known what I did not know and what, when I learned it, I was always able to forget. But I did not know that then, although I learned it later.
Concepts that have proven useful in ordering things easily achieve such authority over us that we forget their earthly origins and accept them as unalterable givens.
Even if you forget that´s not the same as if it never happened. The slate is not entirely wiped clean; you can´t reclaim the person you were beforehand; your state of innocence is not there to be retrieved.