Man and Sin by Piet Schoonenberg (1964) 2.2 EE
Summary of text [comment] page 79
The inability to love brings about the inability for complete goodness.
Our bodies and our materiality produce diverse tendencies, each striving for a partial good. These diverse tendencies contradict one another. If there is to be harmony, then the contradictions eventually resolve. This, in itself, is not evil.
We personally mold ourselves by ordering, integrating and unifying our drives and powers. Love facilitates this. Any other attitude facilitates the promotion of some partial goods at the expense of others.