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There are general principles and rules to follow in composing music or in painting a picture, but there is no formula for the creation of a masterpiece. The artist himself counts for more than the rules. So it is with an interpretation. There are the facts the general principles, methods and techniques, but the interpreter is also an important part of the final presentation. His is the opportunity of welding the facts into a unified story and of adapting the methods to the audience and to his own personality. There is ample need for the exercise of imagination, resourcefulness, and originality.

Other traits, too, characterize the successful interpreter. He is sincere in his presentation, and sincerity comes from having valid ideas and believing in them. He is enthusiastic, and his enthusiasm results from having valid ideas and finding them so interesting that they must be shared with others. He retains a sense of humor which is another way of saying that he sees things in proper perspective. A zealot has enthusiasm, and a kind of sincerity, but lacks perspective. Lastly, the interpreter has a sense of leadership and confidence. Self-confidence can be overdone or assumed as a cover for inadequacy, and is then reflected as egotism and conceit. A proper sense of leadership starts with full preparedness. It is strengthened by the knowledge that people want leadership, and the confidence on the part of the interpreter that he is qualified to provide it. It is climaxed by the conviction that his task is worthwhile and important.

Interpretation is important. To provide the background of science or history, to assist in the development of honest concepts in conservation and American tradition, to stimulate an avocational interest in the subject field, or merely to add to the immediate pleasure of a visitor are works that are well worth the doing. Their accomplishment can bring a very high measure of personal satisfaction to the interpreter. It is a privilege worthy of the highest measure of performance.