It is requisite for the relaxation of the mind that we make use, from time to time, of playful deeds and jokes.

Man cannot live without joy; therefore when he is deprived of true spiritual joys it is necessary that he become addicted to carnal pleasures.

Because of the diverse conditions of humans, it happens that some acts are virtuous to some people, as appropriate and suitable to them, while the same acts are immoral for others, as inappropriate to them.

Practical sciences proceed by building up; theoretical science by resolving into components.

So, to detract from the perfection of creatures is to detract from the perfection of divine power.

True peace consists in not separating ourselves from the will of God.

There can be no joy in living without joy in work.