This is such a striking and beautiful statement, I want to let the document stand on its own today–a good reflection as we launch into this second week of Advent. Here is some of the context surrounding it.
In the depths of his conscience, man detects a law which he does not impose upon himself, but which holds him to obedience. … Conscience is the most secret core and sanctuary of a man. There he is alone with God…
Conscience frequently errs from invincible ignorance without losing its dignity. The same cannot be said for a man who cares but little for truth and goodness, or for a conscience which by degrees grows practically sightless as a result of habitual sin.
Gaudium et Spes, #16 (excerpts)
Intentional Catholic 