Throughout human history, the prevailing belief system changes from time to time & place to place; most people unthinkingly absorb whatever happens to be the prevailing dogma of their time & place. Here, I will show the radical differences between the philosophy of our Founding Era and the philosophy of today. And when I have done so, you will understand why our Country is declining and what you can do about it. In a nutshell, the Enlightenment philosophy of our Founding Era, which was based on Reason and the recognition of the existence of Fixed Principles, was taken away from us; and replaced with the subjective philosophies of Pragmatism & Existentialism, both of which reject Reason and deny the existence of Objective Truth & Fixed Principles. These are now the prevailing dogma of our Time; and unless we promptly repudiate them, we will fall.