The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.
The best technology is the one you don't notice.
金银像其他商品一样具有内在价值,这不是任意的,而是取决于它们的稀缺性、获取它们所耗费的劳动量以及生产它们的矿山所投入的资本价值。