El desorden simulado postula una disciplina perfecta; el miedo simulado postula valor; la debilidad simulada postula la fuerza.

Lao Tzu

Self-discipline is the ability to organize your behavior over time in the service of specific goals.

Nathaniel Branden

If you have discipline, drive, and determination… Nothing is impossible.

Dana Linn Bailey

Self-discipline is about controlling your desires and impulses while staying focused on what needs to get done to achieve your goal.

Adam Sicinski

The ability to discipline yourself to delay gratification in the short term in order to enjoy greater rewards in the long term is the indispensable prerequisite for success.

Maxwell Maltz

Do something every day that you don't want to do. This is the golden rule for acquiring the habit of doing your duty without pain.

Mark Twain