Philosophical traditions, is it? How about "By the sweat of thy brow shalt thou earn thy daily bread"? And, while I'm at it, "The poor will always be with you"?
And Marx wrote "from each according to his ability" before "to each according to his need". How did non-contributors fare in Marxists states? Well they were sent to forced labour camps where they worked or they starved.
I tend to consider the Soviet experiment a subset of the general Progressive one, which sheds no complimentary light on the latter -- but, for those who cleave to it, "no true Scotsman" seems spackle enough to cover the cracks.
