The perspective of eternity is not a perspective from a certain place beyond the world, nor the point of view of a transcendent being; rather it is a certain form of thought and feeling that rational persons can adopt within the world... Purity of heart, if one could attain it, would be to see clearly and to act with grace and self-command from this point of view.

A Theory of Justice (ed. Harvard University Press, 2009) - ISBN: 9780674042582