I am reading a great biography of William Wilberforce at the moment – Hero for Humanity by Kevin Belmonte [This being an important year in remembering the abolition of the slave trade in England (200 years ago).] It has been interesting to read how God worked in Wilberforce's life to bring him to salvation. Once he became a Christian, and already a member of Parliament, he struggled a bit with whether he should quit being an MP and pursue some type of "full-time" Christian service. Encouraged by William Pitt and others to remain in Parliament and serve God there (and obviously, God ended up using his position in a mighty way to end a horrible practice), Wilberforce remained an MP in following years and used his influence to effect much good.
An avid reader of Sir Francis Bacon, Wilberforce quotes this in his diary (around 1784/5):
Illi mors gravis incubat, qui notus nimis omnibus, ignotus moritur sibi
It is a sad fate for a man to die too well known to everybody else, and still unknown to himself.
Wilberforce concluded: "The shortening of private devotions starves the soul, it grows lean and faint. This must not be."
I find myself rebuked by these words.