Alexis de Tocqueville (1805-59) came to America in 1831 to see what a great republic was like. What struck him most was the country's equality of conditions, its democracy. The book he wrote on his return to France, Democracy in America, is both the best ever written on democracy and the best ever written on America. It remains the most often quoted book about the United States, not only because it has something to interest and please everyone, but also because it has something to teach everyone.
When it was published in 2000, Harvey Mansfield and Delba Winthrop's new translation of Democracy in America—only the third since the original two-volume work was published in 1835 and 1840—was lauded in all quarters as the finest and most definitive edition of Tocqueville's classic thus far. Mansfield and Winthrop have restored the nuances of Tocqueville's language, with the expressed goal "to convey Tocqueville's thought as he held it rather than to restate it in comparable terms of today." The result is a translation with minimal interpretation, but with impeccable annotations of unfamiliar references and a masterful introduction placing the work and its author in the broader contexts of political philosophy and statesmanship.

这部著作的上卷和下卷，不是写于同一时期，其间相隔5年，因而在笔调、结构、叙述上有所不同。本书上卷包括美国的地理环境、种族状况、英裔移民带到北美的影响、美国联邦制的优点与其他国家联邦制的比较、联邦政府与各州政府的关系、政党产生的原因、政治社团的作用、舆论的作用等方面；中心思想是阐明美国的民主、自由、平等是如何在政治生活和社会生活中体现的。下卷是以美国的民主思想和美国的民情为背景分析了美国人的哲学观念、宗教思想、科学理论、文学、艺术、社会心理、民族性格等等方面。同时，与英法等国为代表的西欧国家的类似问题作了对比。