We must now consider the distinction of things in particular; and firstly the distinction of good and evil; and then the distinction of the spiritual and corporeal creatures.

Concerning the first, we inquire into evil and its cause.

Concerning evil, six points are to be considered:

A[1] Whether evil is a nature?

A[2] Whether evil is found in things?

A[3] Whether good is the subject of evil?

A[4] Whether evil totally corrupts good?

A[5] The division of evil into pain and fault.

A[6] Whether pain, or fault, has more the nature of evil?