ethics of reciprocity = the golden rule

Testament Deuterocanonical books of Tobit and Sirach accepted as part of the Scriptural canon by Catholicism, Eastern Orthodoxy, and the Non-Chalcedonian Churches also expressed as the Silver Rule.

Tobit 4:15 "Do to no one what you yourself dislike."

Sirach 31:15 "Recognize that your neighbor feels as you do, and keep in mind your own dislikes."

Gospel

Therefore all things whatsoever ye would that men should do to you, do ye even so to them: for this is the law and the prophets. (mathew 7:12)

And as ye would that men should do to you, do ye also to them likewise. (Luke 6:31)

And, behold, a certain lawyer stood up, and tempted him, saying, Master, what shall I do to inherit eternal life? He said unto him, What is written in the law? how readest thou? And he answering said, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy strength, and with all thy mind; and thy neighbour as thyself. And he said unto him, Thou hast answered right: this do, and thou shalt live. (Luke 10:25-28)

Confucius

Never impose on others what you would not choose for yourself. analects xv. 24 (V.13, VI30)

Anusasana Parva, Section CXIII, Verse 8

One should never do that to another which one regards as injurious to one’s own self. This, in brief, is the rule of dharma. Other behavior is due to selfish desires. (Brihaspati, Mahabharata)

Muhammad

Hurt no one so that no one may hurt you. (The Farewell Sermon)

Jainism

Nothing which breathes, which exists, which lives, or which has essence or potential of life, should be destroyed or ruled over, or subjugated, or harmed, or denied of its essence or potential.

In support of this Truth, I ask you a question - "Is sorrow or pain desirable to you ?" If you say "yes it is", it would be a lie. If you say, "No, It is not" you will be expressing the truth. Just as sorrow or pain is not desirable to you, so it is to all which breathe, exist, live or have any essence of life. To you and all, it is undesirable, and painful, and repugnant (Acaranga Sutra)

Sikhism (Guru Granth Sahib)

Whom should I despise since the one lord made us all. (Var Sarang)

The truly enlightened ones are those who neither incite fear in others nor fear anyone themselves. (Slok)

Taoism

Regard your neighbor's gain as your own gain, and your neighbors loss as your own loss (T'ai Shang Kan Ying P'ien)