Silence can hold more meaning than words. It has power to make a heartless person love and an innocent victim hate. it is much more powerful than words because it takes effort to keep. It is not only about closing your mouth. it is about taking in others' actions or words, thinking about them , formulating an answer, criticizing that answer, searching for logic from your mind and reason from your heart, and then convincing your self that not saying the answer is better.
Silence is not a sign of weakness. It is a sign of intelligence and inner power. It is a sign of faith that replying in the same manner that you were treated with will only make you just as ignorant. Learn to be an observer, a deep one, who reflects not only on his or her mistakes, but also on the mistakes of others.