Teaching is more difficult than learning because what teaching calls for is this: to let learn. The real teacher, in fact, lets nothing else be learned than learning. His conduct, therefore, often produces the impression that we properly learn nothing from him, if by "learning" we now suddenly understand merely the procurement of useful information.
Martin HeideggerIn no way can it be uttered, as can other things, which one can learn. Rather, from out of a full, co-existential dwelling with the thing itself - as when a spark, leaping from the fire, flares into light - so it happens, suddenly, in the soul, there to grow, alone with itself.
Martin HeideggerQuestions are not happenstance thoughts nor are questions common problems of today which one picks up from hearsay and booklearning and decks out with a gesture of profundity questions grow out of confrontation with the subject matter and the subject matter is there only where eyes are, it is in this manner that questions will be posed and all the more considering that questions that have today fallen out of fashion in the great industry of problems. One stands up for nothing more than the normal running of the industry. Philosophy interprets its corruption as the resurrection of metaphysics.
Martin Heidegger