John Adams was born on October 30, 1735, in Braintree (now Quincy), Massachusetts, the eldest son of John Adams Sr., a farmer and deacon, and Susanna Boylston. His family were Puritans of the New England tradition — the expectation of hard work, moral seriousness, civic obligation, and plain speaking was the air he breathed. He attended Harvard College, graduating in 1755, and became a schoolteacher before turning to law. His legal career was distinguished from the beginning by an unusual combination: genuine legal expertise deployed in service of principled positions, regardless of political convenience. His defense of the British soldiers accused in the Boston Massacre (1770) — his argument that even they deserved legal representation — was a principled act that cost him politically and that he always cited as his most important professional accomplishment.
Adams's role in American independence was foundational if sometimes overlooked. He was a delegate to both Continental Congresses and was the driving force behind Washington's appointment as Commander-in-Chief — a choice he made despite his own military ambitions, believing Washington was better suited to the role. He served as American ambassador to the Netherlands and Britain, negotiating central diplomatic relationships and the final peace treaty with Britain. He was the first Vice President under Washington and the second President of the United States, serving from 1797 to 1801. His presidency was defined by his refusal to declare war on France, despite enormous political pressure — a decision that may have preserved the republic's survival but certainly cost him his second term.
Adams's relationship with Thomas Jefferson — the closest of friendships, then a bitter political rivalry, then a remarkable late-life reconciliation that produced a famous correspondence — is one of the great narratives of American history. Both men died on July 4, 1826, the fiftieth anniversary of the Declaration of Independence. Adams's last reported words were 'Thomas Jefferson survives' — unaware that Jefferson had died hours before. The correspondence between Adams and Jefferson in their final decade, preserved in their letters, constitutes one of the finest intellectual dialogues in American literature.
Adams's ISTJ nature explains both his extraordinary virtues and his political difficulties. The ISTJ's absolute commitment to principle over political calculation — the willingness to do what is right regardless of what is expedient — made Adams one of the most morally consistent founders and also one of the least politically successful. He refused to play the popularity games that Jefferson, Hamilton, and Madison understood were necessary for political survival in a democratic republic. His signing of the Alien and Sedition Acts is the ISTJ's shadow: the principled man who, under pressure, mistakes institutional power for institutional integrity. His two-volume diary and prolific correspondence are the ISTJ record: meticulous, honest, deeply felt, and without the self-promotional editing that characterizes the memoirs of more politically sophisticated figures.