Discipline means the willing submission of a person to rules, regulations and instructions to someone recognized by society. It is a willing and polite discharge of one's duty towards others in society. Discipline must be observed by everyone of us in all walks of life. One should be disciplined whether at home, in school on the play ground, on duty, in the office or in the army. The strength of a nation lies in discipline. No nation can progress unless its citizens are disciplined. Citizens of a disciplined nation work in a spirit of co-operation and unity.