An _indifferent_ action is one that can be omitted or done without contradicting any truth.
Reason, the judge of what is true and false, is the only faculty concerned; but, at the same time, Wollaston makes large reference to the subject of Happiness, finding it to consist in an excess of pleasures as compared with pains.

He holds that his doctrine is in conformity with all the facts.

It affirms a progressive morality, that keeps pace with and depend upon the progress of Science.

It can explain _errors_ in morals as distinct from vice.

An error is the affirmation by an action of a false proposition, thought to be true; the action is bad, but the agent is innocent.
JOHN LOCKE.