The way to protect yourself against errors on this site is to consult Ayn Rand, Leonard Peikoff, and Harry Binswanger in the originals. Here is a partial reference list.
Ayn Rand: Atlas Shrugged; Random House.
Ayn Rand: The Fountainhead; Bobbs Merrill.
Ayn Rand: The Romantic Manifesto; NAL Books.
Ayn Rand: Capitalism: the Unknown Ideal; NAL Books.
Ayn Rand: The Virtue of Selfishness; NAL Books.
Ayn Rand: The Voice of Reason; NAL Books.
Harry Binswanger: Volition as Cognitive Self-Regulation; Ayn Rand Institute Press.
A source for these books is The Ayn Rand Bookstore.