Then, in the next place, we must know that every being which is endowed with reason, and transgresses its statutes and limitations, is undoubtedly involved in sin by swerving from rectitude and justice. Every rational creature, therefore, is capable of earning praise and censure: of praise, if, in conformity to that reason which he possesses, he advance to better things; of censure, if he fall away from the plan and course of rectitude, for which reason he is justly liable to pains and penalties. And this also is to be held as applying to the devil himself, and those who are with him, and are called his angels. (Book I, Chapter 5, Part 2)

To be rational is to choose: to be able to distinguish good from evil and the ability to do one or the other.

When we choose the good we progress. When we choose evil we regress.

Evil is any departure from rectitude and justice. I wonder if this is the same as righteousness and justice, tsedeq and mishpat?

Good is to advance unique potential of each and all.

Good is to recognize the profound possibilities in each person, including yourself, and to participate in society in a manner that honors these possibilities.