Rand's greatest influence was Aristotle, especially Organon ("Logic"); she considered Aristotle the greatest philosopher.In particular, her philosophy reflects an Aristotelian epistemology and metaphysics -- both Aristotle and Rand argued that "there exists an objective reality that is independent of mind and that is capable of being known."Although Rand was ultimately critical of Aristotle's ethics, others have noted her egoistic ethics "is of the eudemonistic type, close to Aristotle's own ...