Effort is the source of happiness No matter how the world treats you, please continue to work hard, be brave and hopeful, hope that all the unwillingness in life is because you have a dream in your heart. Before you want to give up, please do your best. You need to know that not everything is destined to succeed. But everything is worth trying. Life is actually like a "siege". People outside want to go in, people inside want to come out. You don't have the jealousy you imagined. Keep life happy, don't be arrogant, rash or jealous. Everyone has different ways to realize the value of his life.