This study aims to introduce Nietzsche's genealogical method as a critical and deconstructive tool for prevailing values, ideas, and customs, and as a philosophical approach that aims at a rigorous critical review of many concepts upon which philosophical discourse is based, such as the concept of value, truth, language, logic, metaphysics, and others. Through our exploration of Nietzsche's genealogical critique of various philosophical issues, we have reached the conclusion that this critique constitutes a project of evaluating values in terms of their origin and legitimacy, and a questioning of Western reason. It is simultaneously a means of searching for and uncovering the primary roots of moral judgments in order to expose and unveil the various distortions associated with them, removing the masks that have concealed the truth. It is an instrument for undermining and destabilizing the various concepts upon which Western philosophical thought has been built. Consequently, its aim is to achieve human knowledge and encompass its various dimensions: social, psychological, religious, and ethical. This is accomplished by dismantling the dominant paradigm and reestablishing a new history for philosophy in general and values in particular.