Use the hammer of diligence, and let the knee of prayer be exercised, and there is not a stony doctrine in Revelation which is useful for you to understand, which will not fly into shivers under the exercise of prayer and faith. You may force your way through anything with the leverage of prayer. Thoughts and reasonings are like the steel wedges which give a hold upon truth; but prayer is the lever which forces open the iron chest of sacred mystery, that we may get the treasure hidden within.
-- C. H. Spurgeon
Here is a good testimony from a pastor that I received regarding the Daily Thoughts that dealt with motives in Christian ministry.
Thanks for the thoughts on our motives. You are right on. My wife and I were talking about your article last night on our front porch. I told her as a result of it that I was set free from the pressure to be somebody. It's like we labor under a burden, sometimes unspoken, to be a hero preacher. As though the pinnacle of preaching achievement is to be a popular conference speaker or an open-air evangelist. As though we should be reaching for that as a goal--to want to have sought-after messages on the internet and books in demand. I am afraid we have many young men who feel this way and it fosters the desire for men to be a celebrity and to follow men from conference to conference.
Again, be encouraged, brother; thanks for your ministry