Thought reflexes get conditioned very strongly, and they are very hard to change. And the also interfere. A reflex may connect to the endorphins and produce an impulse to hold that whole pattern forther. In other words, it produces a defensive reflex. Not merely is it stuck because it's chemically so well built up, but also there is a defensive reflex which defends against evidence which might weaken it. Thus it all happens, one reflex after another after another. It's just a vast system of reflexes. And they form a 'structure' as they get more rigid.

The treatment of the indeterminacy principle as absolute and final can then be criticized as constituting an arbitrary restriction on scientific theories, since it does not follow from the quantum theory as such, but rather from the assumption of the unlimited validity of certain of its features, an assumption that can in no way ever be subjected to experimental proof.

And thought struggles against the results, trying to avoid those unpleasant results while keeping on with that way of thinking. That is what I call 'sustained incoherence.

Similarly, thought is a system. That system not only includes thought and feelings, but it includes the state of the body; it includes the whole of society - as thought is passing back and forth between people in a process by which thought evolved from ancient times.

This kind of overall way of thinking is not only a fertile source of new theoretical ideas: it is needed for the human mind to function in a generally harmonious way, which could in turn help to make possible an orderly and stable society.

In Nature nothing remains constant. Everything is in a perpetual state of transformation, motion and change.

The question of relevance comes before that of truth, because to ask whether a statement is true or false presupposes that it is relevant (so that to try to assert the truth or falsity of an irrelevant statement is a form of confusion).