What Carter means in the passage is this:
Jimmy Carter was the 39th President of America who advocated for peace and the end of racism. He was awarded a Nobel Prize for his efforts and the excerpt above was from his speech.
He mentioned that although racism had not come to an end in America, notable strides had been made in that regard.
Learn more about Jimmy Carter here:
https://brainly.com/question/807624
#SPJ1