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.
Good can exist without evil, whereas evil cannot exist without good.
Well-ordered self-love is right and natural.
Whatever is received is received according to the nature of the recipient.
There is nothing on this earth more to be prized than true friendship.
God should not be called an individual substance, since the principal of individuation is matter.