In these modern times people consider an intellectual life or a life of manual labor a normal life. A practical man is considered a man of common sense, and common sense reaches no further than its limited boundaries. A practical man is the one who knows best how to guard his material interests in the continual struggle of life. Common sense sees no further than it sees. Many call it positivism only to believe in all that proves to be realistic to our higher senses and in all that can be perceived, felt and experienced by our mind.