Barry begins rather bluntly, setting up an antithesis between certainty and uncertainty. He states within the first sentence that “certainty creates strength,” the broad and frank tone placing a sense of finality in his words. The contrast becomes apparent with his use of “weakness,” “tentative,” and “fearful” when speaking of uncertainty, his words assisting him in formulate an image in which the reader will look upon uncertainty as if it is unwanted and hindering. With uncertainty established, he moves forward, speaking directly about that of a scientist and it's “job requirements.” His depiction is that of “patience” and “self-sufficiency,” painting scientist in such a way that makes them appear to the reader as clever and capable, which
