We say that ''Discipline is the key to success'' ,and this is true ,as in a student's life discipline is very important because gaining good marks is not enough, teachers also watch students' manners that how she/he talks ,sit etc. Also when you go for an interview the viewers also watch your discipline and then give you a job otherwise no. Discipline is very important in our lives in every stage .From your behavior ,people judge your family background ,as when your behavior is good and you are disciplined people think you are from a good family ,but if you are 
 in disciplined people think your family is also like you.
So ,in short discipline is very important in our lives......

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