“One prerequisite for originality is clearly that a person shall not be inclined to impose his preconceptions on the fact as he sees it. Rather, he must be able to learn something new, even if this means that the ideas and notions that are comfortable or dear to him may be overturned…It is impossible to overemphasize the significance of this kind of learning in every phase of life, and the importance of giving the action of learning itself top priority, ahead of the specific content of what is to be learned. For the action of learning is the essence of real perception, in the sense that without it a person is unable to see, in any new situation, what is fact and what is not…
…One thing that prevents us from thus giving primary emphasis to the perception of what is new and different is that we are afraid to make mistakes. From early childhood, one is taught to maintain the image of “self” or “ego” as essentially perfect. Each mistake seems to reveal that one is an inferior sort of being, who will therefore, in some way, not be fully accepted by others…Such a fear of making a mistake is added to one’s habit of mechanical perception in terms of preconceived ideas and learning only for specific utilitarians purposes. All of these combine to make a person who cannon perceive what is new and who is therefore mediocre rather than original.”
~David Bohm, On Creativity
Go buy this book and read it if you’re at all interested in the creative process. His observations apply to the entire spectrum of creative activity, from scientists to artists.