The Common Denominator of Success

 The following extract is pivotal in this essay:

"Here's the answer. Any resolution or decision you make is simply a promise to yourself, which isn't worth a tinker's dam unless you have formed the habit of making it and keeping it. And you won't form the habit of making it and keeping it unless right at the start you link it with a definite purpose that can be accomplished by keeping it. In other words, any resolution or decision you make today has to be made again tomorrow, and the next day, and the next, and the next, and so on. And it not only has to be made each day, but it has to be kept each day, for if you miss one day in the making or keeping of it, you've got to go back and begin all over again. But if you continue the process of making it each morning and keeping it each day, you will finally wake up some morning a different man in a different world, and you will wonder what has happened to you and the world you used to live in."