H. P. Grice quotes from R. M. Hare: "Think of one world into whose fabric values are objectively built; and think of another in which those values have been annihilated. And remember that in both worlds the people in them go on being concerned about the same things—there is no difference in the 'subjective' value. Now I ask, 'What is the difference between the states of affairs in these two worlds?' Can any answer be given except 'None whatever'?"