People used to say that a person who has less hairs on his head is a rich person or would be a rich person. The simple story behind it was that people used to believe that a person who has more tension has less hairs. As the arrival of money increases the worry (not the worry of spending the money but the worry of saving it), so the hairs start falling. But, since the last decade, people use to say that the one who has less clothes on his body is more fashionable and rich. Likewise, it is said that more knowledgeable person has less etiquettes and respect for others, although we have ever listened that knowledge teaches etiquettes. The justification of these opposite things is that people just study knowledge but do not learn or apply that knowledge on themselves. Today, we will try to explain this issue.