That is what you must do with your sermons, make them red-hot; never mind if men do say you are too enthusiastic, or even too fanatical, give them red-hot shot. There is nothing else half as good for the purpose you have in view. We do not go out snow-balling on Sundays, we go fire-balling; we ought to hurl grenades into the enemy’s ranks.

—C.H. Spurgeon, The Soul Winner: How to Lead Sinners to the Saviour; Fleming H. Revel edition, 69.