For instance, the Australian social psychologist Joseph Forgas and colleagues showed that sadness reinforces critical thinking: it helps people reduce judgmental bias, improve attention, increase perseverance, and generally promotes a more skeptical, detailed and attentive thinking style. On the other hand, positive moods can lead to a less effortful and systematic thinking style. Happy people are more prone to stereotypical thinking and rely on simple cliché. They are more likely to ‘go with the flow’ and are prone to making more social misjudgments on account of their biases.
"He went on, “It’s good to have a forward-thinking attitude—and I wish I had more of one—but I don’t think it’s so bad that some people can’t. ‘Oh, well, my mom’s dead. She was nice, that’s O.K.’—it just makes me sick.” Lonergan’s tone turned acid. “ ‘It’s fine, I’m dying.’ ‘It’s fine, your mother’s dying, it’s no problem, it’s just life. It’s just a circle of life.’ What fucking circle of life? It all goes in one direction—toward death.”