可持续林业不是一种选择;它是一种义务。
Sustainable forestry is not an option; it's an obligation.
Every performance is a new beginning.
解释:对别人的灾祸而幸灾乐祸是不仁义的,乘别人的危难去攻击不符合武德。
Happiness in marriage is entirely a matter of chance.