Quoting and Originality

It is a general impression that a person who has a habit of quoting other people tends to lack original thoughts of his own. While this may be true in many instances, there are cases of exception. Someone may quote another scholar or a writer rather than using his own words not because the same thought didn't occur to him but because he feels that that particular quote provides a more elegant expression to his own thoughts. If a writer has already expressed an idea in very fine words, should a person still attempt to say it in his own words just for the sake of appearing original, given that the intention is merely to convey a particular thought to the people?