A vital part of the happiness formula is self-discipline. Whoever conquers himself knows deep happiness that fills the heart with joy.

“People become really quite remarkable when they start thinking that they can do…”

“إذا أجلت كل شيء إلى أن تتأكد منه فلن تنجز أي شيء”

“Enthusiasm spells the difference between mediocrity and accomplishment.”

“Imagination is the true magic carpet.”