" But his mannered English bothered her as she got older, because it was costume, his shield against insecurity. He was haunted by what he did not have—a postgraduate degree, an upper-middle-class life—and so his affected words became his armor. She preferred it when he spoke Igbo; it was the only time he seemed unconscious of his own anxieties. "

― Chimamanda Ngozi Adichie , Americanah