We all know the saying, "One's enemy is one's own anger and one's calmness is the friend of oneself." Anger is the root cause of many bad outcomes. We all know of damage that anger has caused us. There are many old stories that tell us the bad effects of anger.      But the question is whether we should never experience anger and lead lives like sages  ?I do not think the answer is a firm yes. Everyone should have this emotion and be able to use it in a wise way. In other words, it is also known as controlled aggression. We see a lot of this kind of controlled emotion when we watch athletes in action. If an athlete has the right amount of aggression, the game or the battle is half won. The other half can be won by his skills.      Controlled aggression or anger also plays an important role in a person's career and life. During the courses of a person's career, people who hold high positions need to exercise this emotion called anger in a professional and right manner. For getting the work done well, it is important for you to make use of positive aggression or controlled anger. We can extend this to our daily lives as well. If the parent is not strict at times, children will behave in a wrong way and do not develop as they are expected. Teachers have to exercise this emotion in a wise way to make the students gain knowledge in an effective manner.      All in all, if one is able to use the emotion called anger in a controlled manner, it will lead to the smooth development in his life and career. We can infer that if a teacher uses controlled anger,   _  .
his students may get good grades he will often get angry with his students he will care about his students very much he will be especially strict with his students