Final answer:
Thomas Paine employs the rhetorical technique of aphorism in his pamphlet 'Common Sense' by using concise and direct language to argue for American independence and a republican government.
Step-by-step explanation:
In Thomas Paine's pamphlet Common Sense, he uses phrases such as "'Tis not the affair" and "'Tis not the concern" as part of a rhetorical technique that illustrates the importance of separating from Great Britain. The technique he employs could be classified as aphorism, which involves making a concise statement designed to make a point or illustrate a commonly held belief. Paine's language is particularly direct and accessible to the common people, thereby making the complex political ideas more digestible and appealing to a broad audience. This encouraged many Americans to rethink their loyalty to the monarchy and consider the benefits of an independent republican form of government.