The crux of creativity resides in the ability to manufacture variation on a theme. If we look at the history of science, for instance, we see that every idea is built upon a thousand related ideas. Careful analysis leads us to understand that what we choose to call a new theme or a new discovery is itself always and without exception some sort of variation, on a deep level, of previous themes. If all of the statements in the passage are true, each of the following must also be true EXCEPT: ['All great scientific discoverers have been able to manufacture a variation on a theme.', 'Careful analysis of a specific variation can reveal previous themes of which it is a variation.', 'Some new scientific discoveries do not represent, on a deep level, a variation on previous themes.', 'No scientific idea is entirely independent of all other ideas.']