Merci Rich pour l'aide...although I feel some contempt in your comment. I maintain "self-sufficient", however. Meriam-Webster's definition: "having an extreme confidence in one's own ability or worth". That's pretty much what I think and what he thinks of himself.

Here's a good help for whoever wants to improve his or her language skIls:
http://dico.isc.cnrs.fr/fr/index.html
I'm patiently awaiting the correction, Rich. Merci encore