Discipline Equals Freedom Field Manual by Jocko Willink ( PDFDrive.com )

need rest or you need a break—then go ahead: Take it.
Chances are you won’t—you won’t need that rest.
Chances are you will realize that the desire to rest
was just weakness—it was the desire to take the path
of least resistance—the downhill path—the downward
path.
And by going through the motions, you overcame that
weakness.
And you stayed on the righteous path—the disciplined
path—
You stayed on The Warpath.
Right where you know you belong.