John Maynard Keynes, Economic Possibilities for our Grandchildren (1930) – “everybody will need to do some work if (s)he is to be contented – three-hour shifts or a fifteen-hour week may put off the problem for a great while. “
Source: https://robotenomics.com/2016/06/22/robots-taking-jobs-maybe-weve-been-thinking-about-this-wrong/