A great many people think they are thinking when they are merely rearranging their prejudices. - David Bohm

Although our modern way of thinking has, of course, changed a great deal relative to the ancient one, the two have had one key feature in common: i.e. they are both generally ‘blinkered’ by the notion that theories give true knowledge about ‘reality as it is’. Thus, both are led to confuse the forms and shapes induced in our perceptions by theoretical insight with a reality independent of our thought and our way of looking.

Communication can lead to the creation of something new only if people are able to freely listen to each other, without prejudice, and without trying to influence each other. Each has to be interested primarily in truth and coherence, so that he is ready to drop his old ideas and intentions, and be ready to go on to something different, when this is called for.

Thus, in scientific research, a great deal of our thinking is in terms of theories. The word ‘theory’ derives from the Greek ‘theoria’, which has the same root as ‘theatre’, in a word meaning ‘to view’ or ‘to make a spectacle’. Thus, it might be said that a theory is primarily a form of insight, i.e. a way of looking at the world, and not a form of knowledge of how the world is.