Following the lead of Kej's comment, this attributes it to Buddhism, though with many more words than "true? kind? necessary?" https://skeptics.stackexchange.c

Following the lead of Kej's comment, this attributes it to Buddhism, though with many more words than "true? kind? necessary?" https://skeptics.stackexchange.com/questions/39843/are-socrates-3-tests-from-a-historical-source https://skeptics.stackexchange.com/questions/39843/are-socra... Personally, I believe it was with Einstein, Churchill (though apparently he added "will the person I insult laugh?") or Lincoln.