People with a pessimistic mindset consider themselves "worthless" or think "no-one cares" when they hit a problem, and so they see the future as "hopeless."
悲觀性格、負面思考的人，遇到挫敗會歸咎於自己，認為「自己沒用」、「沒人在乎我」，因而覺得未來「沒有希望了」，這種無望感和無助感會將人推向深淵。