Let’s take Cesare Borgia as an example of how dangerous jealousy is to human. As the oldest son of the powerful Pope Alexander VI of Vatican, Cesare is said to have everything, from wealth to land and power. Compared to his brother Giovanni, however, Cesare himself felt inferior. He was sick of seeing Giovanni taking away from him beautiful women and more affection from the Pope, as well as losing more important military duties and national honor in to his brother. In situations like this, it is human nature to feel jealous, but Cesare’s extreme envy led him to kill his brother. Now having gained absolute power, it is ironic that Cesare was still not happy. His father was so upset that he imprisoned himself in a palace for a long time, and Cesare was detested by Giovanni’s wife and many family members. From the story, it is startling how jealousy can make people do crazy things and turn brotherhood into rivalry, degrading moral values and causing agony to everyone.
Daily life proves to be a huge source of evidences for the negative effects of jealousy. I feel sad to see the way some of my friends at school treat each other like rivals. Because of excessive competitiveness in academics, the scene of some classmates making fun of somebody else’s low grade is not uncommon. I am astonished at the way many students turn so indifferent whenever I ask them for help with my homework, and the way they wish each other to fail exams so that they can climb to the top of the class. People may argue that being jealous of others’ success gives