There are many quotes, which, over the years, have changed my way of thinking and challenged me spiritually. I must say that it has to be the most difficult thing in the world to choose a few favorites, let alone a single favorite! However, there are seven quotes regarding prayer that have changed my prayer life, and I am very much looking forward to sharing those with you today. Naturally, these quotes are by Leonard Ravenhill, A. W. Tozer, C. S. Lewis, as well as Charles Spurgeon.