"The Divine nature, the filiation of the Son of God, the complex person of Jesus, the procession of the Holy Ghost, and so forth, are not so much to be understood as to be believed."(Source: Spurgeon's Sermon Notes)
Recommended reading:
The Conversion of Charles Spurgeon
The Forgotten Spurgeon, by Iain Murray
A Defense of Calvinism - by Charles Spurgeon
The Forgotten Spurgeon, by Iain Murray
A Defense of Calvinism - by Charles Spurgeon
You can also listen to an audio recording of The Forgotten Spurgeon on Sermonaudio.com:
