There is no reason why an extraphysical general principle is necessarily to be avoided, since such principles could conceivably serve as useful working hypotheses. For the history of scientific research is full of examples in which it was very fruitful indeed to assume that certain objects or elements might be real, long before any procedures were known which would permit them to be observed directly.
David BohmThe system [of thought] doesn't stay with the difficult problem that produces unpleasant feelings. It's conditioned somehow to move as fast as it can toward more pleasant feelings, without actually facing the thing that's making the unpleasant feeling.
David BohmThought is constantly creating problems that way and then trying to solve them. But as it tries to solve them it makes it worse because it doesn't notice that it's creating them, and the more it thinks, the more problems it creates.
David BohmThen there is the further question of what is the relationship of thinking to reality. As careful attention shows, thought itself is in an actual process of movement.
David Bohm