'As I am, so are they; as they are, so am I.' Comparing others with oneself, do not kill nor cause others to kill.
Delight in heedfulness! Guard well your thoughts!
Speak only endearing speech, speech that is welcomed. Speech, when it brings no evil to others, is a pleasant thing.
Let none find fault with others; let none see the omissions and commissions of others. But let one see one's own acts, done and undone.
The thing that is disliked by me is also disliked by others. Since I dislike this thing, how can I inflict it on someone else?
'As I am, so are these. As are these, so am I.' Drawing the parallel to yourself, neither kill nor get others to kill.
All tremble at violence; all fear death. Putting oneself in the place of another, one should not kill nor cause another to kill.
Ceasing to do evil, Cultivating the good, Purifying the heart: This is the teaching of the Buddhas.
Ethical axioms are found and tested not very differently from the axioms of science. Truth is what stands the test of experience.