If You Can't Communicate a Truth, You Don't Understand It

"Regarding writing, let me simply say that there is no discipline more suited to force the mind to organize and communicate truth than that of writing. If you can't communicate a truth, you don't understand it. If you can't communicate it in more than one way, you don't understand it. If you can't communicate it clearly you don't understand it. Writing helps in all these areas."-Ligon Duncan, Dear Timothy, p. 207