How do you become cold hearted/compion less as a man? (MALES ONLY)?

Since I realized to become a good man is to be compion less because someone once told me that what it takes to be great person in life as a man. For this reason, it will help him to make firm decisions for himself than for the majority and strive for excellent. In addition, I realized at 23 years old that humanity is not a good thing anymore because it will throw him off track of his destiny for greatness! If you either agree or diesagree then provide an lenghty explaination.