This book investigates the central question of whether objective moral knowledge is possible through a critical examination of three major philosophical figures. George C. Kerner, an academic philosopher, utilizes the foundational texts of John Stuart Mill, Immanuel Kant, and Jean-Paul Sartre to construct his argument. By analyzing their disparate approaches to moral reasoning, Kerner evaluates the validity of objective ethics and ultimately concludes that moral knowledge is inherently subjective rather than objective.

Experts and students of philosophy often cite this work as a clear, accessible entry point for understanding the divergence between classical and existentialist moral thought. Readers frequently note the clarity of Kerner's prose, which effectively distills complex arguments into a coherent critique of objective morality.