Nixon was inaugurated as president on January 20, 1969, sworn in by his onetime political rival, Chief Justice Earl Warren. Pat Nixon held the family Bibles open at Isaiah 2:4, which reads, "They shall beat their swords into plowshares, and their spears into pruning hooks."In his inaugural address, which received almost uniformly positive reviews, Nixon remarked that "the greatest honor history can bestow is the title of peacemaker"[138]—a phrase that found a place on his gravestone.[139] He spoke about turning partisan politics into a new age of unity:

In these difficult years, America has suffered from a fever of words; from inflated rhetoric that promises more than it can deliver; from angry rhetoric that fans discontents into hatreds; from bombastic rhetoric that postures instead of persuading. We cannot learn from one another until we stop shouting at one another, until we speak quietly enough so that our words can be heard as well as our voices.