[John Adams] letters courting Abigail Smith are especially priceless. In one of 1764 he addresses her as "Miss Adorable" and says that "By the same Token that the Bearer hereof satt up with you last night I hereby order you to give him, as many Kisses, and as many Hours of your Company after 9 O'Clock as he shall please to Demand and charge them to my Account."

After [Tomas] Jefferson's defeat of [John] Adams in the presidential election of 1800, they didn't communicate with one another for more than a decade.

I think [John's Adams] descriptions of the personalities of [Benjamin] Franklin and [Tomas] Jefferson and others were pretty accurate. It is only when he felt he was wronged by them that he lets loose his anger and resentment.

[John] Adams identified himself with the political theories of [James] Harrington, [John] Locke, and [Charles-Louis] Montesquieu, whose ideas of constitutionalism, he believed, were applicable to all peoples everywhere; they were his contribution to what he called "the divine science of politics."

[John] Adams's letters reveal his persistence and determination to win over the Dutch against all odds and to convince them and the other peoples of Europe of the potential greatness of the United States and of the importance of the Revolution to the world.

Creating senates, the French critics said, implied that there was another social order besides the people represented in the houses of representatives. [John] Adams actually agreed with that implication and argued that the aristocracy and the people had to have separate houses; this was the only way the power of the aristocracy could be contained.

[John] Adams was arguing that a separate social order existed that needed to be embodied in senates and his fellow Americans could not accept this and accused him rightly of being obsessed with the English constitution.