clipped from: www.bspcn.com 
Before you invest (or waste) hundreds and thousands of hours on a language, you should deconstruct it. During my thesis research at Princeton, which focused on neuroscience and unorthodox acquisition of Japanese by native English speakers, as well as when redesigning curricula for Berlitz, this neglected deconstruction step surfaced as one of the distinguishing habits of the fastest language learners.