It is significant that Jesus did not give a precise ruling on detailed ethical issues. When asked whether tribute should be given to Caesar (Matt 22:25 ff) he said that what was due to God should be rendered to God and what was due to Caesar should be rendered to him, without saying which is which. This had continually to be be worked out in varying circumstances. Education is a key area.
When asked by two brothers to divide an estate he refused (Luke 12:14). There is truth in Robinson's contention (An Atheists Values, 1964, p. 149): "Jesus says nothing on any social questions except divorce, all ascriptions of political doctrine to him are false. He does not pronounce about war, capital punishment, gambling, justice, the administration of law, the distribution of goods, socialism, equality of income, equality of sex, equality of color, equality of opportunity, tyrrany, freedom, slavery, self-determination or contraception. There is nothing Christian about being for any of these things nor about being against them if we mean by 'Christian' what Jesus taught according to the synoptic gospels."
Some have thought that the passage in the Sermon on the Mount concerning 'turning the other cheek' is an injunction to pacifism as a political technique (Matt. 5:39 ff), but this is to ignore its literary character as well as the nature of Jesus' ethical teachings. It occurs along with the command to pluck out an eye or cut off a hand rather than fall into evil, and also to give your cloak as well to anyone who asks for your coat (and thus be naked, for only two garment were worn). Like paradox, hyperbole is a way of giving concreteness to abstract ideas. The passage is neither for nor against pacifism as a political technique; Robinson is right.