The Mystery of the Georgia Guidestones

"The Georgia Guidestones is a large granite monument in Elbert County, Georgia, USA. A message comprising ten guides is inscribed on the structure in eight modern languages, and a shorter message is inscribed at the top of the structure in four ancient languages' scripts: Babylonian, Classical Greek, Sanskrit, and Egyptian hieroglyphs."

"In June 1979, an unknown person or persons under the pseudonym R. C. Christian hired Elberton Granite Finishing Company to build the structure."
Source: American Stonehenge: Monumental Instructions for the Post-Apocalypse by Randall Sullivan. Wired Magazine ISSUE 17.05 (May 2009)

R.C. Christian is a play on words for Christian Rosenkreutz or "Christian Rose Cross"  (R stands for Rose and C stands for Cross, Christian is the first name of the mythical founder of the Rosicrucians, therefore R.C. Christian is a play on words). R.C. Christian is mentioned in the first public document of the Rosicrucians dated 1614 and named Fraternitatis Rosae Crucis.
The mythical founder of the Rosicrucian Order, Christian Rosenkreutz on the left, notice he looks identical to Jacques De Molay, the last grandmaster of the Knights Templar that was burned at the stake during the Inquisition

"The AMORC Rosicrucian order maintains a difference between the "Great White Brotherhood" and the "Great White Lodge", saying that the Great White Brotherhood is the "school or fraternity" of the Great White Lodge, and that "every true student on the Path" aspires to membership in this Brotherhood."
-Lewis, H. S., Rosicrucian Manual (AMORC, 1938), pp. 139-140.

The Rosicrucian Order also trained Helena Blavatsky through their Great White Brotherhood, Helena Blavatsky claimed that she was in contact with an "Ascended Master" named Koot Hoomi, this of course is a play on words for Ol' Koot or Olcott, the surname of her coleague  Col. Henry Olcott. 

Here are some examples of what Helena P. Blavatsky taught in her book "The Secret Doctrine":

"Lucifer represents.. Life.. Thought.. Progress.. Civilization.. Liberty.. Independence.. Lucifer is the Logos.. the Serpent, the Savior." pages 171, 225, 255 (Volume II)
"It is Satan who is the God of our planet and the only God." pages 215, 216, 220, 245, 255, 533, (VI)

"The Celestial Virgin which thus becomes the Mother of Gods and Devils at one and the same time; for she is the ever-loving beneficent Deity...but in antiquity and reality Lucifer or Luciferius is the name. Lucifer is divine and terrestrial Light, 'the Holy Ghost' and 'Satan' at one and the same time." page 539

Helena Blavatsky and Col. Henry Olcott
Alice Bailey, a disciple of Helena Blavatsky also claimed to have gotten in contact when Bailey was 15, of course the figure of Col. Olcott was alleghorical by this time and still much revered amongst Rosicrucians. Helena Blavatsky co-founded the Theosophical society and Alice Bailey founded the Lucifer Trust publishing company later renamed Lucis Trust, headquartered in 866 United Nations Plaza

source: Bailey, Alice. The Externalisation of the Hierarchy. NY (866 United Nations Plaza!): Lucis Publishing Co., 1982.

It is no wonder why Yoko Ono and others have praised the inscribed messages as "a stirring call to rational thinking," the wife of John Lennon  akin to Thomas Paine’s The Age of Reason (Yoko Ono was the wife of Communist and New Ager, John Lennon. The Beatles were known to be New Agers into Eastern Philosophy and consumed drugs)

"A message consisting of a set of ten guidelines or principles is engraved on the Georgia Guidestones in eight different languages, one language on each face of the four large upright stones. Moving clockwise around the structure from due north, these languages are: English, Spanish, Swahili, Hindi, Hebrew, Arabic, Chinese, and Russian.

1. Maintain humanity under 500,000,000 in perpetual balance with nature.
2.Guide reproduction wisely — improving fitness and diversity.
3.Unite humanity with a living new language.
4.Rule passion — faith — tradition — and all things with tempered reason.
5.Protect people and nations with fair laws and just courts.
6.Let all nations rule internally resolving external disputes in a world court.
7.Avoid petty laws and useless officials.
8.Balance personal rights with social duties.
9.Prize truth — beauty — love — seeking harmony with the infinite.
10.Be not a cancer on the earth — Leave room for nature — Leave room for nature."

We can clearly see that the guidestones mention a World court, these are the principles of a world religion under a world government with a world court, all backed by the Rosicrucians, another chapter of the Knights Templar.