Lucius Caelius Firmianus Lactantius, Roman Rhetorician and Christian Writer c. 250 - 317 A.D.

The Divine Institutions


[6, 5, 10] From this, therefore, it is clear, that the knowledge of good and evil is one thing, but virtue is another; for knowledge can exist without virtue. . . Virtue is not the knowing of good and evil. Rather virtue is the doing of good and not-doing of evil.  Knowledge, however, is in fact joined to virtue in such wise that knowledge precedes virtue, and virtue follows knowledge. Cognition is of no value unless it is followed by action.