DWD20200219

David's Time With Peter F. Drucker 2020.2.19 For most of this period-at least until the early 1980s-all but the first of these assumptions were close enough to reality to be operational, whether for research, for writing,for teaching or for practicing management. By now all of them have outlived their usefulness. They are close to being caricatures. They are now so far removed from actual reality that they are becoming obstacles to the Theory and even more serious obstacles to the Practice of management. Indeed, reality is fast becoming the very opposite of what these assumptions claim it to be. It is high time therefore to think through these assumptions and to try to formulate the NEW ASSUMPTIONS that now have to inform both the study and the practice of management.——《Management Challenges for the 21st Century·Chapter1》(Peter F.Drucker,1999)