光勤奋是不敷的，蚂蚁也是勤奋的。要看你为何而勤奋。(梭罗)？
It is not enough to be industrious, so are the ants. What are you industrious about? (H. D. Thoreau)?
丹麦圣诞树供给不敷的问题发源于1998年至2004年那段时期，其时由于圣诞树供应过剩造成树价狂跌，因此一些树农转种其它作物。
The seeds of the shortage were sown between 1998 and 2004, when tree prices collapsed because of oversupply and some Danish growers switched to other crops.
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