| What do we mean when we say that a system is "in control"? (MS 143-144) |
| What should be controlled? (MS 150) |
| Is the work of management science really a question of making computer applications in industry then? (MS 169) |
| What is left after the complete manager? (DC 35) |
| Everything depends on how the system is defined, and this in turn depends on who is the observer. (DC 274, 346) |