... Of what? Of itself? Good one on Ayn! Never noticed the fallacy there.
One of the most grotesque instances of the stolen concept fallacy may be observed in the prevalent claim — made by neo-mystics and old-fashioned mystics alike — that the acceptance of reason rests ultimately on "an act of faith."Reason is the faculty that identifies and integrates the material provided by the senses. Faith is the acceptance of ideas or allegations without sensory evidence or rational demonstration. "Faith in reason" is a contradiction in terms. "Faith" is a concept that possesses meaning only in contradistinction to reason. The concept of "faith" cannot antecede reason, it cannot provide the grounds for the acceptance of reason — it is the revolt against reason.