From Metaphysics to Phenomenology： the Philosophy Laying a Foundation for Science

The philosophy laying a foundation for scientific is a tradition in western philosophy. From the ancient Greek philosophy, traditional metaphysics always plays the role of foundation for science. However, with the transform from ontology to epistemology, each specific discipline was separated form the matrix of metaphysics, which resulted in nihilization of philosophy, then psychologism gradually became the basis of specific scientific. The struggle of anti-psychologism and psychologism almost always go together in the field of epistemology. Kant stood on the position of anti-psychologism, trying to rebuild metaphysics. But Kant’s critique is incomplete. Psychologism’s development momentum was not weakened, inversely it got an unprecedented prosperity in modern times. Husserl performed the work of critique psychologism, in which he argument that the basis of logic is not psychologism, and committed to build a pure logic, which rebuilt the role of foundation philosophy to science.