Full Idea
Kohlberg's six stages of ethical development are: 1) avoid punishment, 2) obtain rewards, 3) avoid rejection, 4) avoid censure and guilt, 5) recognise contracts, 6) individual conscience.
Gist of Idea
Avoid punishment, then get rewards, avoid rejection, avoid guilt, accept contracts, follow conscience
Source
report of Lawrence Kohlberg (works [1969]) by Edmund O. Wilson - On Human Nature p.166
Book Reference
Wilson,Edward O.: 'On Human Nature' [Penguin 1995], p.166
A Reaction
This doesn't throw much light on philosophical problems, but the order of the six stages is interesting. Beware of oversimplification, because a situation can put pressure on any one of these six aspects of morality.