"If you must have grace, you shall have it. If you will not be put off, you shall not be put off. Whether things look favorable, or unfavorable, press you on till you find Jesus, and you shall find him." - 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