Penny:  You just assumed my paper would be bad , so you wrote _ one _ for me ?
Leonard Hofstadter: No . I assumed it was good , then I read it .
Penny: What !
Leonard Hofstadter: No ... I mean , it was good ; there was just a few things that needed a little polishing .
Penny: wha- you changed every word !
Leonard Hofstadter: That 's not true , uh , uh . Slavery . Sixteen - nineteen . Your name on the top , that 's all you .