In this report produced in 1973 by the Yorkshire public television, Richard Feynman talks about the importance of original ideas.
Another topic that comes up is simplicity. According to Feynman, nature is usually much simpler than our thoughts. Therefore, when trying to explain phenomena, we tend to overcomplicate things. Often, in the end, reality can be explained by much simpler terms. We just need to look at it from another point of view.