Have you ever wondered why some people reach extraordinary success in achieving their goals while others struggle? Is there some secret knowledge or some mysterious power of the mind that some possess and others not? Well, you could call it that. Highly successful and effective people have one thing in common: they are insanely self-disciplined. Of course, there are some other skills, abilities and mental capacities such as problem-solving, critical observation, willpower, persistence, patience or positive mindset that significantly facilitate goal achievement but self-discipline is paramount.