How To Be Logical

Man has endeavored to be the measure of all things, up to and including his own salvation. But the one thing he cannot serve as the standard of is logic. Logic measures itself by its own internal coherence. One can play games with this and posit logically incoherent arguments but coherence does not just apply to a three sentence statement, it applies to reality as well, and if what you say does not cohere with observation, the logical coherence is just an illusion and a contrivance and no logical at all.