Correct thinking will not make good men of bad ones; but a purely theoretical error may remove ordinary checks to evil and deprive good intentions of their natural support. An error of this sort is abroad at present… I am referring to Subjectivism.
After studying his environment man has begun to study himself. Up to that point, he had assumed his own reason and through it seen all other things. Now, his own reason has become the object: it is as if we took out our eyes to look at them. Thus studied, his own reason appears to him as the epiphenomenon which accompanies chemical or electrical events in a cortex which is itself the by-product of an evolutionary process. His own logic, hitherto the king whom events in all possible worlds must obey, becomes merely subjective. There is no reason for supposing that it yields truth.
CS Lewis, Christian Reflections: The Poison of Subjectivism
This essay by Lewis he develops into The Abolition of Man and into the novel That Hideous Strength, both of which I urge you to read. Here is the crux of the matter. Put Dewey against Lewis and you see the conflict that is determining and will determine the path of our age: will we cast aside civilization and its discontents along with its contents, or will we rediscover the belief in truth that serves as the only tenable foundation for ethics and politics – for the right ordering of soul and society.
Read these essays. I’ll try to find a link to a carrier as soon as I get a chance. Read these texts!!