To sequence DNA is to read the book of life.
The best way to learn a new programming language is by writing programs in it.
黄金和白银,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在矿山中使用的资本价值。
人们为了保护自己不受伤害,会伤害他人。