Skepticism with respect to concepts and percepts which lead one astray, a major frailty of human understanding.
Reality is hidden.
Problem of subjectivity. While language is natural and essential to human life, it often leads to the propagation of delusions and the postulating of fictitious entities. Philosophical organization of knowledge into totalizing systems and methodologies that are inherently misleading. Critical analysis, empirical observation, and caution are required to avoid being trapped by these idols. Hume and Dogmatic Empiricism Hume refuses the seduction to which Bacon fell prey.