Fear is such a powerful emotion for humans that when we allow it to take us over, it drives compassion right out of our hearts.

God's precepts are light to the loving, heavy to the fearful.

Three things are necessary for the salvation of man: to know what he ought to believe; to know what he ought to desire; and to know what he ought to do.

The human mind may perceive truth only through thinking, as is clear from Augustine.

How is it they live in such harmony the billions of stars - when most men can barely go a minute without declaring war in their minds about someone they know.

In order for a war to be just, three things are necessary. First, the authority of the sovereign... Secondly, a just cause... Thirdly... a rightful intention.

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.