Moral development continues throughout the life span, even spawning dialogue of philosophical implications of such research.

Psychologists
Lawrence Kohlberg
American psychologist (1927-1987) who extended Piaget to moral judgment, proposing six stages from preconventional to postconventional. Known for the Heinz dilemma and Just Community Schools, critiqued by Carol Gilligan.
View this figure's profile
Lawrence Kohlberg's Other Quotes
The aim of education should be development.
Right action tends to be defined in terms of general individual rights and standards which have been critically examined and agreed upon by the whole society.
Only by settling our differences with other members of the group can we actually understand the shortcomings of our own beliefs.
The Heinz dilemma exposes not the choice a person makes, but the structure of reasoning that justifies the choice.
Related Quotes
Once we realize that imperfect understanding is the human condition, there is no shame in being wrong, only in failing to correct our mistakes.
-- George Soros
A sunao (open) mind sees the truth of things without being trapped by preconceptions.
-- Kōnosuke Matsushita
There is but one truly serious philosophical problem, and that is suicide.
-- Albert Camus
Life being only a fraction of a second in eternity, one should at least make it bearable.
-- Paul Gauguin
Where do we come from? What are we? Where are we going?
-- Paul Gauguin
The man who dies rich dies disgraced.
-- Andrew Carnegie