Unbelief is the greatest of sins.

To teach in order to lead others to faith is the task of every preacher and of each believer.

If you can live amid injustice without anger, you are immoral as well as unjust.

God should not be called an individual substance, since the principle of individuation is matter.

He (Mohammed) seduced the people by promises of carnal pleasure to which the concupiscence of the flesh urges us. His teaching also contained precepts that were in conformity with his promises, and he gave free rein to carnal pleasure. In all this, as is not unexpected; he was obeyed by carnal men. As for proofs of the truth of his doctrine, he brought forward only such as could be grasped by the natural ability of anyone with a very modest wisdom. Indeed, the truths that he taught he mingled with many fables and with doctrines of the greatest falsity.

That the saints may enjoy their beatitude and the grace of God more abundantly they are permitted to see the punishment of the damned in hell.

How can we live in harmony? First we need to know we are all madly in love with the same God.