His Hermeneuticalness as a great entry on the proper understanding and function of a person’s conscience in case of possible conflict with the, for example, teaching of a Pope or of the Church.
You will want to read the whole thing, which starts with a look at the most recent rubbish from John Cornwell.
Fr. Finigan’s post takes up the "toast quote" of Ven. John Henry Newman.
Here is an excerpt from the entry:
It is from this point that Newman discusses conscience since he has admitted that "there are extreme cases in which Conscience may come into collision with the word of a Pope." He says that conscience is the apprehension of the divine law which is the supreme rule of conduct. He points out that this Christian understanding of conscience is opposed to the subjective view of conscience which sees it as a creation of ourselves rather than the voice of God. Newman describes the popular understanding which is familiar to us today, though sadly now within the Church as well as outside of it:
When men advocate the rights of conscience, they in no sense mean the rights of the Creator, nor the duty to Him, in thought and deed, of the creature; but the right of thinking, speaking, writing, and acting, according to their judgment or their humour, without any thought of God at all. They do not even pretend to go by any moral rule, but they demand, what they think is an Englishman’s prerogative, for each to be his own master in all things, and to profess what he pleases, asking no one’s leave, and accounting priest or preacher, speaker or writer, unutterably impertinent, who dares to say a word against his going to perdition, if he like it, in his own way.
Go see the rest at Fr. Finigan’s place!