Courtesy is the set of rules we must observe in order to show our education in its many aspects.
The rules of courtesy teach us to be methodical and exact when fulfilling our social duties.
They teach us to be attentive, respectful, courteous, affable and tolerant towards others.
They teach us to be clean and orderly and to maintain our composure. In short, they make us honourable and worthy of general appreciation.
Because of the rules of courtesy we become decent in everything we do, even though we are poor and little educated.
Remember that there can be many educated people who are still ill-mannered.
Dear reader, follow the rules of courtesy and you will be an example for the others.