Heart quality is something which must be developed within oneself. And when no attention is given at the time of youth to develop that particular quality, what happens when a person is grown up? He is selfish, proud, mannerless, not ready to sacrifice. This qualification it is that guards his interest the best he can. And one calls that a person of common sense, a practical man. Imagine! If everybody is a practical man of common sense, what can one expect from life except constant conflict as it is today, as we see in life.