Was Man's Reason Unaffected by the Fall? Turretin Denies

Gordon Clark and his followers believe and proclaim the affirmative. They assert that the human intellect remained in its pristine condition even after man's descent into sin and that the sin problem is one solely of an ethical nature.

While the sin problem is indeed ethical, an immediate observation is the undue and coerced bifurcation made between reason and the will (an assumed independence). What the position seems to be saying is that the will can act independently of what the mind deems as good and fitting. Even in the case of addictions, where it seems that the will and emotions are acting in rebellion against the mind, the intellectual involvement is ever present in its estimation of the pleasure to be derived from engaging in the illicit act.

But what does one of the prime exponents of Reformed Orthodoxy have to say about the state of reason in unregenerate man? Let us reckon with Francis Turretin's words: