The honesty of Kant's dualism takes courage, because the impossibility of bringing reason and nature together is not a truth we really want to know.
pg 123

This book is a huge defense of Kantian philosophy in life, seeking to clarify the many misconceptions people have of Kant being "boring", "rigid", "inflexible" etc, reconciling Kant's middle way with a whole spectrum of diverse thinkers such as Thrasymachus, Voltaire, Rousseau, Leibniz, Hume, Hobbes, Hegel and even Nietzsche. Perhaps growing up is indeed like the art of tightrope walking. A bit off, and you plunge into an abyss of either cynicism or immaturity, neither which is desirable.