"Rebukes should always be dealt in love; never wash a man's face in vitriol. Some persons would burn down a house to get rid of a mouse. The smallest fault is denounced as a great crime, and a good brother is cut off from fellowship, and bad feeling is raised, when a gentle hint would have done the work much more effectively." From Spurgeon's Sermon Notes
Further recommended reading & listening:
The Best of The Daily Spurgeon
The Forgotten Spurgeon, by Iain Murray
A Defense of Calvinism - by Charles Spurgeon