After World War II, liberal rights were not something that were only deserved by white Europeans. ...There was a recognition that the black and brown peoples being held in colonial bondage could not consistently be held in that bondage, because liberalism was a universal doctrine. ...That's the other respect in which we can defend liberalism, a moral one.

That liberal world that emerged after 1945 led to one of the most spectacularly successful periods in human history. There was material progress. There was stability. There was human freedom. There was the flourishing of many human activities that can only take place in a liberal, and therefore free society...

Therefore tolerance of diversity, of people that don't believe the same thing that you do, has always been at the core of this pragmatic project to enable diverse populations to live with one another.

In the Thirty Years' War... a third of the population of central Europe were killed in a bloody struggle between different Christian religious sects, and the pragmatic part of liberalism was to take final ends [defined by religions] out of political discussion... and to lower the sights of politics to defend life itself, and not "the good life"... as defined by a particular sect of a particular religion.

The pragmatic justification is that liberalism is... a political doctrine that seeks to enable societies to govern themselves over diversity. It arose in the minds of thinkers like Thomas Hobbes or John Locke or Samuel Pufendorf... as a result of the European wars of religion following the Protestant Reformation.

It is hard to see how the discarding of liberal values is going to lead to anything in the long term other than increasing social conflict and ultimately a return to violence as a means of resolving differences.

Progressives on the left have shown themselves willing to abandon liberal values in pursuit of social justice objectives. There has been a sustained intellectual attack on liberal principles over the past three decades coming out of academic pursuits like gender studies, critical race theory, postcolonial studies, and queer theory, that deny the universalistic premises underlying modern liberalism. The challenge is not simply one of intolerance of other views or "cancel culture" in the academy or the arts. Rather, the challenge is to basic principles that all human beings were born equal in a fundamental sense, or that a liberal society should strive to be color-blind.

In situations of de facto diversity, attempts to impose a single way of life on an entire population is a formula for dictatorship.

Putin told the Financial Times that liberalism has become an "obsolete" doctrine. While it may be under attack from many quarters today, it is in fact more necessary than ever. It is more necessary because it is fundamentally a means of governing over diversity, and the world is more diverse than it ever has been. Democracy disconnected from liberalism will not protect diversity, because majorities will use their power to repress minorities.

Liberal values like tolerance and individual freedom are prized most intensely when they are denied: People who live in brutal dictatorships want the simple freedom to speak, associate, and worship as they choose. But over time life in a liberal society comes to be taken for granted and its sense of shared community seems thin.