I know not; am I my brother's keeper?
In the Old Testament story of Cain and Abel, this was Cain's answer to God when God asked where his brother was. The true answer, of course, was that Abel was dead, because Cain had just killed him.
The answer itself, however, has resonated down the years not as an alibi to murder, but as a reproof against those who refuse all responsibility for the good of humanity.
Or, as many modern-day conservatives would put it, why should healthy, provident me have to pay for unhealthy, improvident others? Read more about Jeepers Keepers