On Liberty

A cornerstone of modern political philosophy, On Liberty defends the freedom of the individual against the tyranny of both the state and social conformity. Mill argues for the “harm principle”—that power can only rightfully be exercised over someone to prevent harm to others—making a passionate case for free speech, nonconformity, and the pursuit of one’s own good in one’s own way. As relevant today as when it was first published in 1859, this classic essay is essential reading for anyone who values personal freedom and the limits of authority.