Dang! I missed that one!As well you should, because you are essentially correct.
If you can please "All of the people Some of the time..." it becomes exclusive of "some of the people none of the time."
So I would submit the original phrase "all of the people some of the time" is to be stricken... first because it is an impossibility, and second because the truth "some people are never satisfied" is all too evident all around us to ignore.
But I should have caught the practical impossibility of any statement starting with "all of the people" - at least outside of hermetically isolated, brainwashed sects, which Abe certainly didn't mean. Makes me wonder why he used such a statement. Not even Hitler, Stalin or Mao managed an "all of the people". And at least those trying to fool the others tend not to be fooled; though their even fooling themselves can never be discounted.

