"Immanuel Kant argues that mere conformity with the moral law is not sufficient for moral goodness." In this context what is the literal meaning of "moral goodness" in simple terms?
As far as I remember Kant wrote the "highest good" is honesty in:
KANT, I. 1781. The canon of pure reason: section II: of the ideal of the highest good, as a determining ground of the ultimate end of pure reason. (In Weigelt, M. ed. Immanuel Kant: critique of pure reason. London: Penguin Classics, 2007)