生命的价值不在于能活多少天,而在于我们如何使用这些日子。
Learning is the process of modifying symbolic structures to improve performance.
Efficiency is doing things right; effectiveness is doing the right things.
Happiness is like a butterfly; the more you chase it, the more it will elude you. But if you turn your attention to other things, it will come and sit softly on your shoulder.
气候变化迫使每个林业工作者都成为了气候科学家,无论他们是否愿意。