Do you have enough self-discipline?

I find it interesting that a word with such a positive root word has developed such a negative connotation. The root word of "discipline" is "disciple." A disciple is a follower of a teaching. A discipline in another context is an area of study. Yet when we use the word discipline in regards to ourselves, or our children, it has become a synonymous with punishment. The idea that you need to emotionally beat yourself into compliance is counterproductive, in fact it usually has the opposite effect. In the common phrase, "I should have more self-discipline" I'm not sure which word is more self-destructive, "discipline" or "should." Although "should" is a thought for another day.
-Neil R. Jones MA, LMHC