Only someone as different from other people as the body is from the soul or beasts are from human beings would be a slave by nature, Aristotle concludes, all others being slaves solely by law or convention.

Since the implementation of the Statute of Westminster 1931 in each of the Commonwealth realms ( on successive dates from 1931 onwards ), the Act of Settlement cannot be altered in any realm except by that realm's own parliament and, by convention, only with the consent of all the other realms, as it touches on the succession to the shared throne.

However, legislating for alterations to the Act is a complex process, since the act is a common denominator in the shared succession of all the Commonwealth realms and the Statute of Westminster 1931 acknowledges by established convention that any changes to the rules of succession may be made only with the agreement of all of the states involved, with concurrent amendments to be made by each state's parliament or parliaments.

This convention is easier to use in chemical equations, replacing the need to write out the mass number for each atom.

On 15 July 2008, the Committee that oversees the administration of the convention between meetings of all the Parties granted China and Japan permission to import elephant ivory from four African government stockpiles, the ivory being sold at a single auction in each country.

In a social context, a convention may retain the character of an " unwritten " law of custom ( for example, the manner in which people greet each other, such as by shaking each other's hands ).

Astronomers preferred the latter GMT convention in order to simplify their observational data so that each entire night was logged under a single calendar date.

) and the stock identifier, respectively ( in this case Kodak's standing for 5279 emulsion ); each manufacturer has different stocks ' naming convention for their emulsion codes.

In opposition to the German submissions, the United States argued that the Vienna Convention did not grant rights to individuals, only to states ; that the convention was meant to be exercised subject to the laws of each state party, which in the case of the United States meant subject to the doctrine of procedural default ; and that Germany was seeking to turn the ICJ into an international court of criminal appeal.

As a matter of convention, each sister chromatid is now considered a chromosome, so they are renamed to daughter chromosomes.

By convention, physical quantities are organized in a dimensional system built upon base quantities, each of which is regarded as having its own dimension.

Puerto Rico does participate in the internal political process of both the Democratic and Republican parties in the U. S., accorded equal-proportional representation in both parties, and delegates from the islands vote in each party's national presidential convention.

In 1653, a convention of two deputies from each village in New Netherland demanded reforms, and Stuyvesant commanded that assembly to disperse, saying: " We derive our authority from God and the company, not from a few ignorant subjects.

No result came of those at Paris ( 1852 ), Constantinople ( 1866 ), Vienna ( 1874 ), and Rome ( 1885 ), but each of the subsequent ones has been followed by an international convention on the part of nearly one-half of the governments represented.

The aim of each international sanitary convention had been to bind the governments to a uniform minimum of preventive action, with further restrictions permissible to individual countries.

The convention as to altering the " Royal Style and Titles " was altered by the Commonwealth Prime Ministers in 1953, when they agreed to pass individual Royal Style and Titles Acts to enact different royal styles in each realm.

The iconicity and symbolism of a sign depends on the cultural convention and are on that ground in relation with each other.

The term " Trojan " derives from the fact that, by convention, they are each named after a mythological figure from the Trojan War.

27 states had called for a constitutional convention on the subject, with 31 states needed to reach the threshold ; Arizona and New Mexico each achieved statehood that year ( bringing the total number of states to 48 ), and were expected to support the motion, while Alabama and Wyoming, already states, had passed resolutions in favor of a convention without formally calling for one.

The vice presidential candidates of the major national political parties are formally selected by each party's quadrennial nominating convention, following the selection of the party's presidential candidates.

Worldcon, or more formally The World Science Fiction Convention, is a science fiction convention held each year since 1939 ( except for the years 1942 to 1945, during World War II ).

The members of each Worldcon are the members of WSFS and vote both to select the site of the Worldcon two years later and ( since 1955 ) to select the winners of the Hugo Awards, which are presented at the convention.

While each convention is run separately by the local committee, an informal and self-selected group of volunteers constitute the " Permanent Floating Worldcon Committee " who volunteer for many Worldcons in different years ; this group offers a measure of institutional continuity to otherwise disparate legal organizations.

There is also a convention badge, displaying each attendee's name, membership number and ( if desired ) fannish nickname.

Having witnessed the events firsthand, she was later infuriated that she was consistently denied the chance to speak in Parliament about the day, although parliamentary convention decreed that any MP witnessing an incident under discussion would be granted an opportunity to speak about it in the House.

Officials on the third day of the Fatah convention in Bethlehem unanimously accepted the proposal put forth by the chairman of the Araft Institute stating that Israel had been behind the " assassination " of the late Palestinian Authority Chairman and affirmed Fatah's request for international aid to probe the issue.

The long-standing astronomical convention dating from the work of Ptolemy, was to refer to noon as zero hours ( see Julian day ).

The latter convention was adopted on and after 1 January 1925 for astronomical purposes as well, resulting in a discontinuity of 12 hours, or half a day earlier.

Instead of the international date line convention, there are varying opinions as to where the day changes.

Thus, Peel affirmed a convention of the constitution that promotes stability in the British system: the Parliament of the day must respect the settlement of constitutional issues made by previous Parliaments.

However, the volksraad, at a meeting held at Rustenburg on 16 March 1852, ratified the convention, Potgieter and Pretorius having been publicly reconciled on the morning of the same day.

The debate on the platform opened at the start of the third day of the convention, July 9, 1896.

In his acceptance speech a week after the convention ended, Secretary Hoover said: " We in America today are nearer to the final triumph over poverty than ever before in the history of this land ... We shall soon with the help of God be in sight of the day when poverty will be banished from this land.

Phobos was discovered by astronomer Asaph Hall on August 18, 1877, at the United States Naval Observatory in Washington, D. C., at about 09: 14 Greenwich Mean Time ( contemporary sources, using the pre-1925 astronomical convention that began the day at noon, give the time of discovery as August 17 at 16: 06 Washington mean time ).

It is the sixth day in countries that adopt a Sunday-first convention as in Abrahamic tradition.

The name Friday comes from the Old English Frīġedæġ, meaning the " day of Frigg ", a result of an old convention equivocating the Old English goddess Frige with the Roman goddess Venus, with whom the day is associated in many different cultures.

In countries that use the Sunday-first convention Thursday is defined as the fifth day of the week.

In countries that use the Sunday-first convention Wednesday is defined as the fourth day of the week.

In that case, the discount factor is then ( if the usual money market day count convention for the currency is ACT / 360, in case of currencies such as USD, EUR, JPY ), with the zero-rate and the time to cashflow in years:

On July 11, the announcement first appeared, giving readers just eight days ' notice until the first day of convention.

On July 19, 1848, the morning of the first day of convention, the organizing committee arrived at the Wesleyan Methodist Chapel shortly before ten o ' clock on a hot, sunny day to find a crowd gathered outside and the church doors locked — an overlooked detail.

One day, he was performing at a rabbi's convention when one joking rabbi squirted seltzer on him, washing off his clown makeup.

Each August more than 1, 000 magicians and lovers of magic gather there for " Abbott's Magic Get-Together ", a 4 day magic convention, doubling the population, sharing magic tricks, and recollecting their knowledge of the famous occupation.

Pelosi conducts convention business during the first day of the 2008 Democratic National Convention in Denver, Colorado.

His conduct is noted as " from the first, excellent ; ever perfectly upright and fearlessly independent ", although the convention of the day was that the judges held their positions only at the pleasure of the monarch.

There are many conventions on how interest is calculated – see day count convention for some – while a standard convention is the annual percentage rate ( APR ), widely used and required by regulation in the United States and United Kingdom, though there are different forms of APR.