 Knowing stuff probably refers to recognizing objects, events, or situations under some name—at the very least, under the “all-reaching” or “universal” name ‘thing’, which applies to everything—without necessarily knowing the correct name for them. For example, sometimes the same kind of object may have two names, such as ‘dog’ and ‘hound’ (B39). Someone might know of this kind of object and know to call it “dog,” without also knowing to call it “hound.” Then the person would know the stuff referred to by ‘hound’ but not the name ‘hound’. 