Perhaps all have benefitted by wise insights preacher and professors:

Go to a Baptist College. You can’t get a better education anywhere else.
     –E. R. Harper, formerly of Herald of Truth, when asked if education at a Baptist University would hurt my reputation.

Anyone who will fight over Sunday night communion will fight over anything.
     –Foy Smith who supported himself with full-time meetings and who doubted Sunday evening communion was scriptural

I have benefitted by useful insights of several preacher and professors. Following are a few.

Keep your old sermon outlines. Develop a uniform way of writing them, and you can use them repeatedly. I wish I had saved mine.
     –John Banks, former minister, College church of Christ, Fresno, California.

I am uncomfortable giving advice. I have enough trouble living my own life.
     –Alton Little, former minister, East Bakersfield Church of Christ.