When we mix together the ingredients for a cake, we begin by measuring the appropriate quantities of distinct and separate ingredients: flour, butter, eggs, sugar, milk. But somehow, when these are blended together in a particular order and baked at a particular temperature, we create an altogether different entity. The chemical composition of the ingredients has irrevocably changed; the cake smells, looks and tastes different from any single ingredient which we put into it at the outset; and through some magic which the chemist might explain but the cook usually does not comprehend, a transformation process has occurred which is nothing short of miraculous...

Liz Greene
Introduction to "Relationship Horoscope"