Nobody is entitled to wear the mantle of a master merely because he has received teaching from a master. He is at best only a transmitter of information and not the originator of it. For he may transmit knowledge which he does not himself understand, which is far over his head or which he is even capable of misunderstanding and therefore likely to lead others totally astray. How can such a person be called a qualified master? Let us therefore make a sharp differentiation between those who are competent to be called teachers and those who are merely transmitters of teaching.
-- Notebooks Category 1: Overview of the Quest > Chapter 6: Student-Teacher > # 390