Human being varies in nature. Not all people in this world are sincere. There are a lot of people in this world with dual nature. Human behavior is also dual and depends on either the person in front is able to give him some benefit or not. Such people are very dangerous. They try to keep themselves attached with those with which they can get advantage and those who easily trust everyone. Their feelings and emotions are based on their purpose. As soon as they will be succeeded in their aim, they do not even care about other feelings and easily betrays them.
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