The contemporary movement is regarded as having been founded in the UK in the early 1970s by a group of Oxford university post-graduate philosophy students, now known as the "Oxford Group". The group was led by Rosalind and Stanley Godlovitch, graduate students of philosophy who had recently become vegetarians. The Godlovitches met John Harris and David Wood, also philosophy graduates, who were soon persuaded of the arguments in favour of animal rights and themselves became vegetarian. The group began to actively raise the issue with pre-eminent Oxford moral philosophers, including Professor Richard Hare, both personally and in lectures. Their approach was based not on sentimentality ("kindness to dumb animals"), but on the moral rights of animals. They soon developed (and borrowed) a range of powerful arguments in support of their views, so that Oxford clinical psychologist Richard Ryder, who was shortly to become part of the group, writes that "rarely has a cause been so rationally argued and so intellectually well armed."