Danger of culture shock from contact with an advanced civilization

"Moreover, there is only one way of making progress: conjecture and criticism. And the only moral values that permit sustained progress are the objective values that the Enlightenment has begun to discover. No doubt the extraterrestrials’ morality is different from ours; but that will not be because it resembles that of the conquistadors. Nor would we be in serious danger of culture shock from contact with an advanced civilization : it will know how to educate its own children (or AIs), so it will know how to educate us – and, in particular, to teach us how to use its computers."