Loyalty Islands | oath of office | Tennis Court Oath | Olympic Oath | Oath of Supremacy | Strength & Loyalty | Oath of office | Oath Crisis | Loyalty program | loyalty program | Exit, Voice, and Loyalty | Das Oath | Athlete's oath | United States Uniformed Services Oath of Office | ''The swearing of the oath of ratification of the treaty of Münster in 1648'' (1648) by Gerard ter Borch | Scouts' Oath of Allegiance | Police Oath | Police oath | Order of Loyalty to the Crown of Malaysia | Oath of the Peach Garden | Oath of the Horatii | Oath More Judaico | Oath | oath | minced oath | MBA Oath | Massachusetts Teachers' Oath | loyalty marketing | Hittite military oath | Fan loyalty |
During the Civil War his sympathies were with the South, and he refused to take the loyalty oath to the United States required of lawyers.
In a 1950 letter to Robert Sproul, the president of the University of California, he refused to sign a loyalty oath, at the time a prerequisite to becoming an instructor at the UC Berkeley.
He was fired by SUNY-Buffalo for not taking a loyalty oath, but was vindicated in the Supreme Court.