In the inner turning towards virtues, it can become clear how the human soul is in a state of continuous development. Humans have the opportunity to consciously enhance and perfect the transformative powers of their own soul through the practice of the so-called twelve monthly virtues. Are virtues, and thus morality, learnable? What do the quiet yet once highly valued qualities of discretion or politeness, devotion, or patience tell us today? Courage is often loudly praised - but do we not also experience how it is often difficult or even impossible to muster in its less spectacular form as civil courage on buses and trains, in public spaces, or in closed societies? In twelve lectures, the transformative powers of the soul that arise from virtues will be illuminated and described in their ethical, psychological, and intellectual historical dimensions.