UPDATE: A new J.C. Ryle 365 Day Devotional has been released from Reformation Heritage Books. This devotional was taken from hundreds of J.C. Ryle's sermons. You can order the devotional HERE.
No state of soul can be conceived so dangerous as that of the Pharisee. Never are men’s bodies in such desperate plight, as when disease and insensibility set in. Never are men’s hearts in such a hopeless condition, as when they are not sensible of their own sins. He that would not make shipwreck on this rock, must beware of measuring himself by his neighbors. What does it signify that we are more moral than other men? We are all vile and imperfect in the sight of God. “If we contend with Him, we cannot answer him one in a thousand” (Job 9:3). Let us remember this. In all our self-examination let us not try ourselves by comparison with the standard of men. Let us look at nothing but the requirements of God. He that acts on this principle will never be a Pharisee.
~ J.C. Ryle
Expository Thoughts on the Gospels: Luke volume 2 , [Carlisle, PA: Banner of Truth, 1986], 260, 261. {Luke 18:9-14}