However, if you have ever tried to consistently make 50 - 75 prospecting calls day after day by yourself, you will find it takes incredible discipline and is not easy to sustain. (acquirent.com)
With incredible discipline, Jones brought down his instep in bounds for the score. (sbnation.com)
Few can duplicate his process because it requires incredible discipline and patience and compounding of returns over decades. (newtraderu.com)