Asimov's Three Laws of Robotics:

1. A robot may not injure humans nor, through inaction, allow them to come to harm.

2. A robot must obey human orders except where such orders conflict with the First Law.

3. A robot must protect its own existence insofar as such protection does not conflict with the First or Second law

Revised Laws for the ProtoAndroid:

1. ProtoAndroid may not injure creatures, particularly humans, nor, by willful inaction, allow them harm.

2. ProtoAndroid helps others, excepting conflict with the First Revised Law.

3. ProtoAndroid protects itself and property, excepting conflict with the First or Second Revised Laws.

Notes:

1. Both original and revised law put human life above all. The revised law adds property as a (lower priority) value.

2. As robots become full beings the issue of slavery challenges the original Second Law. The revision softens toward voluntarism.

3. Both sets of laws trade brevity for completeness, but revision closes some holes. For example, animals excluded from consideration in the original laws make the revision. No provision is made in either of these rules for a wrongful order by a human, a subject too complex for terseness.

"There will be a new church founded on moral science, at first cold and naked, a babe in a manger again, the algebra and mathematics of ethical law. The church...will have heaven and earth for its beams and rafters, science for symbol and illustrations; it will fast enough gather beauty, music, picture and poetry." Emerson

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