The man of authentic self-confidence is the man who relies on the judgment of his own mind. Such a man is not malleable; he may be mistaken, he may be fooled in a given instance, but he is inflexible in regard to the absolutism of reality, i.e., in seeking and demanding truth.
Ayn RandAn inventor is a man who asks 'Why?' of the universe and lets nothing stand between the answer and his mind.
Ayn Rand