On him (met autou). With him, more exactly. The lawyer saw the point and gave the correct answer, but he gulped at the word "Samaritan" and refused to say that. Do thou (su poiei). Emphasis on "thou." Would this Jewish lawyer act the neighbour to a Samaritan? This parable of the Good Samaritan has built the world's hospitals and, if understood and practised, will remove race prejudice, national hatred and war, class jealousy.