The document defines key moral terms including conscience, moral maturity, morality, and immorality. It describes conscience as the inner voice that urges people to do good and avoid evil. Moral maturity is defined as a person's cognitive moral development. Morality involves principles of right and wrong behavior that depend on the object, intention, and circumstances of an action. Immorality is defined as conduct that does not align with standards of right and good.

2. CONSCIENCE
The awareness of a moral or ethical aspect to
one's conduct together with the urge to prefer
right over wrong.
CCC:
The inner voice in a man that moves him to do
good under any circumstances and to avoid evil
by all means. At the same time it is the ability to
distinguish the one from the other.
“Anything that is done against conscience is a
sin”
St Thomas Aquinas

3. MORAL MATURITY
The measure of a person's cognitive moral
development.
CCC:
The morality of human acts depends on:
- the object chosen;
- the end in view or the intention;
- the circumstances of the action.

4. MORALITY
Principles concerning the distinction between
right and wrong or good and bad behavior.
CCC:
Freedom makes man a moral subject. When he
acts deliberately, man is, so to speak, the father
of his acts. Human acts, that is, acts that are
freely chosen in consequence of a judgment of
conscience, can be morally evaluated. They are
either good or evil.

5. IMMORALITY
the quality of not being in accord with standards
of right or good conduct.
CCC:
Opposition of Moral acts.