解释:如果自己都不尊重自己,那么危险和侮辱就会接踵而至。
解释:看到兔子再回头唤猎狗,还不算太晚;跑掉了羊再去修补羊圈,也不算太迟。
The only meaningful way to study learning is through objective measurement.
林业的未来属于那些将树木视为生命系统而不仅仅是立木库存的人。
The best businesses are those that solve real problems for real people.