[21] Therefore we sympathise in joy with those who love God and [11] [12] seek to understand the nature of the living God, even if they fail to discover it; for the vague investigation of what is good is sufficient by itself to cheer the heart, even if it fail to attain the end that it desires. But we participate in indignation against that lover of himself, Cain; because he has left his soul without any conception whatever of the living God, having of deliberate purpose mutilated himself of that faculty by which alone he might have been able to see him.