Discipline

Self-discipline is the ability to control one¿s own thoughts, feelings, and actions in pursuit of long-term goals and values. It involves regulating one¿s own behavior in order to achieve personal and professional objectives, despite distractions, temptations, or other obstacles. Self-discipline requires persistence, determination, and the ability to delay gratification.
This book will teach you how to maintain your focus and make consistent progress towards your goals, while also avoiding impulsive or self-destructive behavior.