The second set of eighteenth-century political ideas celebrating freedom came to be known as “liberalism” (although its meaning was quite different from what the word suggests today). Whereas republican liberty had a public and social quality, liberalism was essentially individual and private. The leading philosopher of liberty was John Locke, whose Two Treatises of Government, written around 1680, had limited influence in his own lifetime but became extremely well known in the next century. Many previous writers had compared government to the family assuming that in both, inequality was natural and power always emanated from the top. Locke held that the principles that governed the family were inappropriate for organizing public life. Government, he wrote, was formed by a mutual agreement among equals (the parties being male heads of households, not all persons). In this “social contract,” men surrendered a part of their right to govern themselves in order to enjoy the benefits of the rule of law. They retained, however, their natural rights, whose existence predated the establishment of political authority. Protecting the security of life, liberty, and property required shielding a realm of private life and personal concerns— including family relations, religious preferences, and economic activity— from interference by the state. During the eighteenth century, Lockean ideas—individual rights, the consent of the governed, the right of rebellion against unjust or oppressive government—would become familiar on both sides of the Atlantic.
Like other Britons, Locke spoke of liberty as a universal right yet seemed to exclude many persons from its full benefits. Since the protection of property was one of government’s main purposes, liberalism was compatible with substantial inequalities in wealth and well-being. Moreover, while Locke was one of the first theorists to defend the property rights of women and even their access to divorce, and condemned slavery as a “vile and miserable estate of man,” the free individual in liberal thought was essentially the propertied white man. Locke himself had helped to draft the Fundamental Constitutions of Carolina, discussed in Chapter 3, which provided for slavery, and he was an investor in the Royal African Company, the slave-trading monopoly. Slaves, he wrote, “cannot be considered as any part of civil society.” Nonetheless, by proclaiming that all individuals possess natural rights that no government may violate, Lockean liberalism opened the door to the poor, women, and even slaves to challenge limitations on their own freedom.

The Polling, by the renowned eighteenth-century British artist William Hogarth, satirizes the idea that British elections are decided by the reasoned deliberations of upstanding property owners. Inspired by a corrupt election of 1754, Hogarth depicts an election scene in which the maimed and dying are brought to the polls to cast ballots. At the center, lawyers argue over whether a man who has a hook for a hand can swear on the Bible.
Republicanism and liberalism would eventually come to be seen as alternative understandings of freedom. In the eighteenth century, however, these systems of thought overlapped and often reinforced each other. Both political outlooks could inspire a commitment to constitutional government and restraints on despotic power. Both emphasized the security of property as a foundation of freedom. Both traditions were transported to eighteenth-century America. Ideas about liberty imported from Britain to the colonies would eventually help to divide the empire.

The title page of John Locke’s Two Treatises of Government, which traced the origins of government to an original state of nature and insisted that political authorities must not abridge mankind’s natural rights.