know each other well, who in non-Quaker circles would address each other with a title, to use first name and last name together, rather than to adopt the more familiar first name only. Friends also tend not to use the appellation sir or madam to refer to someone of whom they do not know the name, instead using the term Friend. In letter-writing, where others might use the phrase Dear Sir or Madam, many Quakers would instead write Dear Friend, and in such letters, rather than finishing yours faithfully would finish either yours in truth or yours in friendship. This practice is now considered more a part of the Testimony of Equality than a part of the Testimony of Simplicity. Additionally early Friends and modern Friends do not swear oaths, even in courtrooms (a choice that has been allowed in Britain since 1695, and is protected in the United States by the Constitution, and one that can be problematic elsewhere). When required, Quakers may instead "affirm" that they are going to tell the truth. This was considered an aspect of simplicity because it was simply telling the truth rather than embellishing it with an oath, which is not necessary if one is supposed to always tell the truth. It is also an aspect of the Testimony of Integrity. It comes in part from Christ's teaching in the sermon on the mount: In a similar manner Friends avoid haggling over prices. They simply set a fixed price that they considered fair, which went against the custom of earlier times, but was felt by them to be simpler and more honest (this practice is generally considered more a part of the Testimony of Integrity than a part of the Testimony of Simplicity). Simplicity in general life The Testimony of Simplicity is an important part of Quaker life, and many examples of its influence can be seen in both day-to-day and ceremonious practices. In keeping with the testimony, for example, many meetings that have care of a graveyard ask that those erecting monuments to deceased Friends keep the testimony in mind and erect only a simple, low-lying stone. Citations General and cited sources Hamm, Thomas D. Quakers in America, (Contemporary American Religion series), Columbia University Press, 2003. . NOTE: The section on "Simplicity" is at pp. 101–108. Some pages from this section are available on Google Books. Fager, Charles E. "The Quaker Testimony