"Hobbes, Locke, Spinoza, and Kant never had children. Descartes's only daughter, born outside of marriage, died at the age of five. Rousseau had five children with a mistress but abandoned them all to an orphanage in infancy. In other words, Enlightenment rationalism was the construction of men who had no real experience of family life or what it takes to make it work. Enlightenment liberal political theory, which resolves around the free individual who accepts only those obligations to which he consents, was invented by men who did live in more or less this way. It is a political theory made in the image of unmarried, childless individuals, and the more people repeat its tenets, the more they act like unmarried, childless individuals."