How does this excerpt connect to the theme “secrets isolate people”?

Extra points on this question fast

I’n a rough draft, where should the main idea first appear in the paper

Which piece of information about doris lessing would more likely be found in the new york times article "doris lessing wins nobel prize in literature" than in the "doris lessing" biographical video? the opinion lessing has of the current political climate in south africa description of the home which lessing and her husband live in today