There is no doubt that there are strong challenges against the theory of knowledge (epistemology), which is the basis of founding the worldview, upon which all sciences depend, besides its essential role in man’s happiness. The most serious challenges against this theory are those in Western philosophy. In this study, we try, through a critical analytical approach, to present the most important of these challenges in contemporary philosophy represented by phenomenological philosophy, and show the nature of these challenges, which form another reading of the relationship between mind and reality. As phenomenological philosophy deals with mind, the self, and the transcendental ego, and abandons reality. This, in fact, is exclusion of the demonstrative mind’s role in Moreover, phenomenology denies metaphysics that deals with abstract phenomena that cannot be realized through consciousness or feeling. Hence, true scientific knowledge is the knowledge of immutable essences, that are actually perceived by consciousness or feeling. And finally, we try to criticize Husserls phenomenological philosophy.