It was C. S. Lewis who said, "Humility is not thinking less of yourself, it's thinking of yourself less."
The Apostle Paul wrote, "Through the grace given to me I say to everyone among you not to think more highly of himself than he ought to think; but to think so as to have sound judgment, as God has allotted to each a measure of faith." (Romans 12:3 NASB)
I would generally agree that thinking of oneself at all is a dangerous, slippery path.
Brennan Manning traveled a long and twisted road to get to a place where his observations on life and love and himself mattered and were able to influence and encourage hundreds of thousands of people.
From page 19 of The Ragamuffin Gospel, this is Brennan at his best:
"My deepest awareness of myself is that I am deeply loved by Jesus Christ and I have done nothing to earn it or deserve it."
Truth is...I believe the more I can see myself in this light, the more I will be able to live a life of powerful humility...like Christ.