Key thinkers intuitionism
Principles may conflict or change from culture to culture - culturally relative
goodness cannot be defined in natural terms
moral principles cannot be absolute
we may not know what to do with certainty but we can improve our ability to make judgements through experience of previous moral decision-making
Ross provides a solution to the Kantian problem of a son who is required to fulfil his duty by being honest and telling a murderer where his father is