Language and thought may be viewed as two independent circles overlapping in some parts, where language and thought are consistent with each other and one never occurs without the other. When thought and language are identical or closely parallel to each other, we may regard speech as "overt thought"
语言和思想在某些部分可以被看作是两个相互重叠的又独立的圈子，其中语言和思想是一致的，其中一个在没有另一个的情况下是不会发生的。当思想和语言是完全一致或紧密平行时，我们可以把言语看作是“有声的思维”。
