"If one can really come to that state of saying, "I do not
know," it indicates an extraordinary sense of humility; there is no
arrogance of knowledge; there is no self-assertive answer to make
an impression. When you can actually say, "I do not know," which
very few are capable of saying, then in that state all fear ceases
because all sense of recognition, the search into memory, has come
to an end; there is no longer inquiry into the field of the known.
Then comes the extraordinary thing. If you have so far followed
what I am talking about, not just verbally, but if you are actually
experiencing it, you will find that when you can say, "I do not
know," all conditioning has stopped. And what then is the state of
the mind? ...
We are seeking something permanent permanent in the sense of
time, something enduring, everlasting. We see that everything about
us is transient, in flux, being born, withering, and dying, and our
search is. But that which is truly sacred is beyond the measure of
time; it is not to be found within the field of the known". -
J.Krishnamurti