There is another form of temptation, even more fraught with danger. This is the disease of curiosity. It is this which drives us to try and discover the secrets of nature, those secrets which are beyond our understanding, which can avail us nothing and which man should not wish to learn.

The love of our neighbor hath its bounds in each man's love of himself.

A free curiosity is more effective in learning than a rigid discipline.

By means of corporal and temporal things we may comprehend the eternal and the spiritual.

This awful catastrophe is not the end but the beginning. History does not end so. It is the way its chapters open.

Consequently, heretics and schismatics, separated from the unity of this Body, are able to receive the same Sacrament, but with no benefit to themselves; indeed, more to their own harm, in that they are judged the more severely rather than being liberated.

We who preach and write, do so in a manner different from which the Scriptures have been written. We write while we make progress.We learn something new every day. We speak as we still knock for understanding...If anyone criticizes me when I have said what is right, he does me an injustice. But I would be more angry with the one who praises me and takes what I have written for Gospel truth than I would be with the one who criticizes me unfairly.