Aspects of Holiness: Great Christian Classics by J C Ryle and published by Grace Publications.
Holiness is much more than tears and sighs, bodily excitement, a quickened pulse, passionate attachment to some preacher or religious group. It is being conformed to the likeness of God's Son' (Romans 8:29). It is something capable of being seen by others, in the detail of our character, habits and daily behaviour.
Ryle writes "It is my hearts desire and my daily prayer that personal holiness will greatly increase among professing Christians. And I trust all who endeavour to promote it will adhere closely to what the Scripture teaches and carefully distinguish between doctrines that differ; if you utter worthy, not worthless, words you will be my spokesman is what the LORD says (Jeremiah 15:19)'.