The Tassie medallion is the most accurate likeness of me — taken from life, in profile, showing a rather prominent nose and a somewhat distracted expression, which is accurate. I was distracted. I spent much of my life thinking about things I could not see: the aggregate effects of millions of individual decisions, the invisible mechanisms by which a pin...

— Adam Smith, The Wealth of Nations, Book I (1776); The Theory of Moral Sentiments, Part I (1759); James Tassie, medallion portrait, 1787, Scottish National Portrait Gallery.
Enlightenment
