Final answer:
The sentence that best summarizes Thomas Paine's method of persuasion is a warning of the dire consequences of cowardice and submission, in contrast to the potential for a glorious outcome through perseverance and fortitude.
Step-by-step explanation:
The sentence that best summarizes Thomas Paine's method of persuasion in this excerpt from 'The Crisis, No. 1' is: 'By perseverance and fortitude we have the prospect of a glorious issue; by cowardice and submission, the sad choice of a variety of evils-a ravaged country-a depopulated city-habitations without safety, and slavery without hope-our homes turned into barracks and bawdy-houses for Hessians, and a future race to provide for, whose fathers we shall doubt of.'