Discipline helps you finish a job, and finishing is what separates excellent work from average work.
Silence is a form of communication, too. Sometimes less is more.
Here's how I'm going to beat you. I'm going to outwork you. That's it. That's all there is to it.
We communicate all the time, even when we don't realize it. Be aware of body language
Know your strengths, weaknesses, and needs.
The ultimate goal of discipline is to teach self discipline.