Only principles endure and these I now possess, for the laws that will lead me to greatness are contained in the words of these scrolls. What they will teach me is more to prevent failure than to gain success, for what is success other than a state of mind? Which two, among a thousand wise men, will define success in the same words; yet failure is always described but one way. Failure is man’s inability to reach his goals in life, whatever they may be.
In truth, the only difference between those who failed and those who have succeeded lies in the difference of their habits. Good habits are the key to all success. Bad habits are the unlocked door to failure. Thus, the first law I will obey, which precedeth all others is—I will form good habits and become their slave.
~ Og Mandino, The Greatest Salesman in the World