A shortage is a sign that somebody is keeping the price artificially lower than it would be if supply and demand were allowed to operate freely.

The personal is universal, and the universal is personal.

选自汉·桓宽《盐铁论·诏圣》。目，网眼。不可，不能。法律制度太粗疏难以治国，就像网眼太少的渔网往往网不到鱼一样。这句话以比喻之法说明立法要周全、精细，不能失之粗疏，否则不易于执法者依法操作。而不能操作，执法者就有了太大的自由度，这就等于没有法律了。

司马牛问君子。孔子说：“君子不忧不惧。”问：“不忧不惧，就能叫做君子吗？”孔子说：“问心无愧，何来忧惧？”

The universe is a place that is far more wonderful than we can possibly imagine.

可持续性不是终点，而是一段旅程。