The world always seems brighter when you've just made something that wasn't there before.
贪心不足蛇吞象,知足才能心安。  
Nature is the best teacher; it has already done the experiments, we just have to interpret them.
任何社会中最危险的创造物是那些没有什么可失去的人。
沉稳是具有传染性的。