This survey aims to show that reason cannot be understood solely in terms of natural science. It must be understood in a much wider context of our life-world. In order to prove our thesis, we try first to unmask the dangerous strategy of methodologists who claim the unique role of method based on scientific rationality. The domination of method and hence the self-promotion of methodology to the rang of universal epistemology gives birth to rationalism and methodological determinism. Such a narrow understanding of reason comes from an insufficient or incomplete survey of the genetical process of reason and method. Our survey is conducted from following aspects: 1)An analysis of the so-called crisis of methodology and reason, best seen in the works of Husserl (The Crisis of European Science) Feyerabend (Against Method), and Gadamer (Truth and Method). 2)A historical survey of the genetical process of reason and method and 3)A reflection on the internal relationship of reason and method which was first defended by the last Wittgenstein