
There are no separate systems. The world is a continuum. Where to draw a boundary around a system depends on the purpose of the discussion.
Donella H. Meadows
Tags:
sept
19
2018

There are no separate systems. The world is a continuum. Where to draw a boundary around a system depends on the purpose of the discussion.
Donella H. Meadows
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This time, like all times, is a very good one, if we but know what to do with it. Ralph Waldo Emerson |
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Boeien! (Succesvol presenteren) Bij Managementboek of Bol.com
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