I need to translate the phrase ?The Golden Rule? in Latin.
I think it is along the lines of ?Aureus regula,? there are many ways
to say the word rule in Latin but I do not know which would be
appreciate to translate the phrase. The translation has to be as
accurate as possible.
Thank you,
 Gianni

The Latin phrase you're seeking is "Regula aurea."

Matthew 7:12 expresses the sentiment that has come to be known as the Golden Rule:

So whatever you wish that men would do to you, do so to them; for this
is the law and the prophets.

MacDonald Family Homepages: Regula Aurea
http://bobmacdonald.gx.ca/synopticeye/regula_aurea.htm

The Latin phrase "regula aurea," referring to Matthew 7:12, appears in
these documents on the Vatican website:

« Regula aurea »: « Omnia [...], quaecumque vultis ut faciant vobis
homines, ita et vos facite eis » (Mt 7,12).

The Holy See Archives: Chatechismus Catholicae Ecclesiae
http://www.vatican.va/archive/catechism_lt/p3s1c1a6_lt.htm

Lex evangelica electionem implicat decretoriam inter « duas vias » et
Domini verborum effectionem; ea in regula aurea compendiatur: « Omnia
ergo, quaecumque vultis ut faciant vobis homines, ita et vos facite
eis; haec est enim Lex et Prophetae » (Mt 7,12).

The Holy See Archives: Chatechismus Catholicae Ecclesiae
http://www.vatican.va/archive/catechism_lt/p3s1c3a1_lt.htm

It should be noted that, as is the case with many phrases, there can
be more than one meaning. The use of the term "regula aurea" is not
limited only to the Biblical "Golden Rule." "Regula aurea" is
occasionally used in reference to economic standards, in which case
the allusion to "gold" is quite literal.

Google search strategy:

Google Web Search: "regula aurea"
://www.google.com/search?hl=en&ie=UTF-8&q=%22regula+aurea

I hope this is precisely the phrase you need. If anything is unclear,
please request clarification; I'll be glad to offer further assistance
before you rate my answer.

Best regards,
pinkfreud