Our view does not deny the importance, and indeed inevitability, of our sustaining the construction of a world in which values pertain to things which are not conceived as anyone’s mere personal experience. It will, however, think that for critical reflection the values of the constructed world only matter to whatever extent they, or the belief in them, are values realized in immediate experience.

Timothy Sprigge, The Rational Foundations of Ethics, London, 1988, p. 182