

Is the world really falling apart? Is the ideal of progress obsolete? Cognitive scientist Steven Pinker urges us to step back from the gory headlines and prophecies of doom, which play to our psychological biases. Instead, follow the data. In seventy-five graphs, Pinker shows that life, health, prosperity, safety, peace, knowledge, and happiness are on the rise, not just in the West, but worldwide. This progress is not the result of some cosmic force. It is a gift of the Enlightenment: the conviction that reason and science can enhance human flourishing. Far from being a naïve hope, the Enlightenment, we now know, has worked. But more than ever, it needs a vigorous defense. The Enlightenment project swims against currents of human nature -- tribalism, authoritarianism, demonization, magical thinking -- which demagogues are all too willing to exploit. Many commentators, committed to political, religious, or romantic ideologies, fight a rearguard action against it. The result is a corrosive fatalism and a willingness to wreck the precious institutions of liberal democracy and global cooperation. Pinker makes the case for reason, science, and humanism: the ideals we need to confront our problems and continue our progress.
A glimpse inside

Pinker marshals a wealth of statistics and historical data to show that, contrary to popular belief, global trends in health, longevity, safety, wealth, and knowledge have improved dramatically over the past centuries. He argues that focusing on negative news stories distorts our perception, making us overlook the broader, positive trajectory of human development. This idea challenges the prevailing narrative of decline and encourages readers to adopt a more evidence-based outlook.
At the heart of Pinker’s thesis is the claim that the values of the Enlightenment—reason, science, humanism, and progress—are responsible for the advances we enjoy today. He traces how these ideals led to the development of liberal democracy, scientific breakthroughs, and social reforms. Pinker warns that these values are not self-sustaining; they require active defense against forces like tribalism, authoritarianism, and anti-intellectualism.
Ratings at a glance
- 1Progress Is Real—and Measurable
- 2The Power of Enlightenment Values
- 3Reason and Science as Engines of Progress
- 4Humanism and Moral Expansion
- 5The Psychology of Pessimism
Popular quotes from Enlightenment Now
“The Enlightenment has worked—not perfectly, but enough to be worth defending.”
“We will never have a perfect world, but it’s not romantic or naïve to work toward a better one.”
