所有财富都是劳动的产物。
You can't manage what you don't measure, and you can't improve what you don't manage.
我不是为了生活而唱歌,我是为了唱歌而生活。
【译文】 孔子在河边说:“时光如流水!日夜不停留。”
The real competition is never rivals, but users' old habits.
儿童不仅在心理上是被动的,而且像一个空花瓶,是一个有待于充满及塑造的生命。