A boundary is not that at which something stops, but that from which something begins.

Questions 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.

The senses do not enable us to cognize any entity in its Being; they merely serve to announce the ways in which 'external' Things within-the-world are useful or harmful for human creatures encumbered with bodies....they tell us nothing about entities in their Being.

But every historical statement and legitimization itself moves within a certain relation to history.

The will to mastery becomes all the more urgent the more technology threatens to slip from human control

Questioning is the piety of thought.

We should never allow our fears or the expectations of others to set the frontiers of our destiny.