If you want to turn your dreams into reality, you need self-discipline. In fact, all the reasons for failure can always be traced back to a lack of self-discipline.
Talent, intelligence, and skill can only take you so far. When all hell breaks loose and it seems like everything is collapsing, what you need is the mental toughness to dismantle your limitations and overcome obstacles; i.e., self-discipline.
No one’s born with it, but anyone can learn it. The author explains it quite simply: “When you make healthy choices, self-discipline is strengthened; on the other hand, making unhealthy choices diminishes self-discipline.”