Feynman's cryptic remark, "no one is that much smarter...," to me, implies something Feynman kept emphasizing: that the key to his achievements was not anything "magical" but the right attitude, the focus on nature's reality, the focus on asking the right questions, the willingness to try (and to discard) unconventional answers, the sensitive ear for phoniness, self-deception, bombast, and conventional but unproven assumptions.
More and Different: Notes from a Thoughtful Curmudgeon (ed. World Scientific, 2011) - ISBN: 9789814350143