The teacher is not to be measured only by his weaker disciples nor by his foolish ones. A juster measurement must take into reckoning the wiser and stronger ones also. What he has done for most of them has been done in spite of themselves, for the egos have thwarted or twisted his influence all too often. Nevertheless it is there and in twenty or thirty years it will still be there, inevitable and inescapable, awaiting the thinning down of the ego's resistance.
-- Notebooks Category 1: Overview of the Quest > Chapter 6: Student-Teacher > # 237