In this book, Kant's ethical system is clearly stated and carefully critiqued. In the process, cogent answers are given to the following questions: *What is the relationship between self-interest and morality? *What is the relationship between morality and rationality? *What is the nature of rationality? *What is the difference between rationality and intelligence?*What is the relationship between awareness of moral norms and awareness of logical norms? A must-read for anyone interested in philosophical psychology, moral epistemology, or Kant-interpretation, this brisk monograph provides a long-overdue alternative to the dreary and opaque tomes on which Kant-aficionados have thus far had to rely.