"The principle of sustainability has been applied in forestry since the beginning of the 18th century: Only as much of the raw material, wood, may be felled as will simultaneously grow back.
Sustainable management means: current needs are met without depriving future generations of the basis of life. It is characterised by long-term thinking and action. A consensus is reached that the term sustainability encompasses the dimensions of ecology, economy and social affairs."
(Gabler Wirtschaftslexikon)