This is a quote that Keith Ellison had in his book:

Humphrey said in a speech, “The moral test of government is how that government treats those who are in the dawn of life: the children; those who are in the twilight of life: the elderly; and those who are in the shadows of life: the sick, the needy, and the handicapped.” Those weren’t just words for Humphrey, it was his personal credo, and I quote it quite often.

It is still a good question…