Although The Great Gatsby opens with a story about Nick’s father telling Nick not to judge others, Nick’s narrative voice in The Great Gatsby is a highly opinionated one. Sometimes he exaggerates what is the case. For example, he says he’s “too poor” to be engaged. Sometimes his contemptuous and nearly sarcastic tone exaggerates what might be the case. For example, when speaking about Tom, he writes that “something was making him nibble at the edge of stale ideas.” It’s not that what Nick’s saying is false, per se, but he’s too opinionated to be a reliable narrator.