What kills the creative force is not age or a lack of talent, but our own spirit, our own attitude. We become too comfortable with the knowledge we have gained. We grow afraid of entertaining new ideas and the effort that this requires. To think more flexibly entails a risk—we could fail and be ridiculed. We prefer to live with familiar ideas and habits of thinking, but we pay a steep price for this: our minds go dead from the lack of challenge and novelty; we reach a limit in our field and lose control over our fate because we become replaceable.
