using the nazi/jew example.. I zoom back to the top when retrofuturist said this
If in doubt, examine the intention.
when faced with the example of saving lives or lieing... intentional lieing may be " unskillful" to a certain degree, but if performing the action brings about benefits for many beings, then I'd gladly break the precepts for this. We might also be good to bring up the five factors of speech -
Five keys to right speech
"Monks, a statement endowed with five factors is well-spoken, not ill-spoken. It is blameless & unfaulted by knowledgeable people. Which five?
"It is spoken at the right time. It is spoken in truth. It is spoken affectionately. It is spoken beneficially. It is spoken with a mind of good-will."
— AN 5.198
lieing to the nazis to save jews I would say fits four of the five factors of well spoken speech.. I'd say that's not a bad trade for doing the right thing.
now this -
The danger in lying
"For the person who transgresses in one thing, I tell you, there is no evil deed that is not to be done. Which one thing? This: telling a deliberate lie."
The person who lies, who transgress in this one thing, transcending concern for the world beyond: there's no evil he might not do.
and of course this -
The criteria for deciding what is worth saying
[1] "In the case of words that the Tathagata knows to be unfactual, untrue, unbeneficial (or: not connected with the goal), unendearing & disagreeable to others, he does not say them.
[2] "In the case of words that the Tathagata knows to be factual, true, unbeneficial, unendearing & disagreeable to others, he does not say them.
[3] "In the case of words that the Tathagata knows to be factual, true, beneficial, but unendearing & disagreeable to others, he has a sense of the proper time for saying them.
[4] "In the case of words that the Tathagata knows to be unfactual, untrue, unbeneficial, but endearing & agreeable to others, he does not say them.
[5] "In the case of words that the Tathagata knows to be factual, true, unbeneficial, but endearing & agreeable to others, he does not say them.
[6] "In the case of words that the Tathagata knows to be factual, true, beneficial, and endearing & agreeable to others, he has a sense of the proper time for saying them. Why is that? Because the Tathagata has sympathy for living beings."
— MN 58
who knows what the Buddha would of done/said in this situation. If he thought that there is much suffering in life and humans kill each other all the time so this is nothing new and no reason to break precepts, I could almost understand that perspective.