Nelle

“Parents teach children discipline for two different, indeed diametrically opposed, reasons: to render the child submissive to them and to make him independent of them. Only a self-disciplined person can be obedient; and only such a person can be autonomous.”
― Thomas Stephen Szasz

“Self-discipline is the ability to organize your behavior over time in the service of specific goals.”
― Nathaniel Branden

“Self discipline is the ability to make yourself do something you don’t necessarily want to do, to get a result you would really like to have.”
― Andy Andrews

“Discipline is for professionals.
Motivation is for amateurs.”
― J.R. Rim