The happy man in this life needs friends.

The theologian considers sin mainly as an offence against God; the moral philosopher as contrary to reasonableness.

God himself would not permit evil in this world if good did not come of it for the benefit and harmony of the universe.

The soul is like an uninhabited world that comes to life only when God lays His head against us.

Love must precede hatred, and nothing is hated save through being contrary to a suitable thing which is loved. And hence it is that every hatred is caused by love.

Given the sin of impiety through which they [the Romans] sinned against the divine nature [by idolatry], the punishment that led them to sin against their own nature followed.... I say, therefore, that since they changed into lies [by idolatry] the truth about God, He brought them to ignominious passions, that is, to sins against nature; not that God led them to evil, but only that he abandoned them to evil.

For it is necessary in every practical science to proceed in a composite (i.e. deductive) manner. On the contrary in speculative science, it is necessary to proceed in an analytical manner by breaking down the complex into elementary principles.