精选优质文档-倾情为你奉上科技文选电子教材Unit oneAThe Known, The Unknown and The Unknowable 1. We are all taught what is known, but we rarely learn about what is not known, and we almost never learn about the unknowable. That bias can lead to misconceptions about the world around us. 2. The known is pressed on us from the first. In school we start each course at the beginning of a long book full of things that are known but that we do not yet know. We understand that beyond that book lies anot
