I shall make you a light to the nations so that my salvation may reach the remotest parts of earth. - Isaiah Berlin

Everyone knows what made Berkeley notorious. He said that there were no material objects. He said the external world was in some sense immaterial, that nothing existed save ideas — ideas and their authors. His contemporaries thought him very ingenious and a little mad.

The simple point which I am concerned to make is that where ultimate values are irreconcilable, clear-cut solutions cannot, in principle, be found. To decide rationally in such situations is to decide in the light of general ideals, the overall pattern of life pursued by a man or a group or a society.

Can a woman forget her nursing child, that she should have no compassion on the son of her womb? Even these may forget, yet I will not forget you. Behold, I have engraved you on the palms of my hands; your walls are continually before me.