If there were some solitary or feral man, the passions of the soul would be sufficient for him; by them he would be conformed to things in order that he might have knowledge of them. But because man is naturally political and social, there is need for one man to make his conceptions known to others, which is done with speech. So significant speech was needed if men were to live together. Which is why those of different tongues do not easily live together.

The blessed in the kingdom of heaven will see the punishments of the damned, in order that their bliss be more delightful for them.

Human salvation demands the divine disclosure of truths surpassing reason.

A man has free choice to the extent that he is rational.

One day when Thomas Aquinas was preaching to the local populace on the love of God, he saw an old woman listening attentively to his every word. And inspired by her eagerness to learn more about her God whom she loved so dearly, he said to the people: It is better to be this unlearned woman, loving God with all her heart, than the most learned theologian lacking love.

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.

Nothing created has ever been able to fill the heart of man. God alone can fill it infinitely.