Answer:
You should indicate where Mira Keller spoke those words.
Step-by-step explanation:
You took this information from some research source. This source can be a book, a lecture, a magazine, among others. For this reason it is important that your citation indicate the source of the research, be preceded by a comma, begin with capital letters and be within quotation marks.
Example: Miria Keller, in her speech on the death penalty, said, "The death penalty is a cruel and unjust form of punishment."