forum for week of 14 Nov: when we don't want knowledge

On knowledge for week of November 14, I would like to include a reference to the book by Bertrand Russell titled The Problems of Philosophy, 1912. In Chapter V, Russell mentions knowledge of things and knowledge of truths. Russell refers to knowledge of things by acquaintance and by description. Beyond sense data, he includes acquaintance by memory and acquaintance by introspection. In addition to acquaintance with particular existing things Russell includes acquaintance by universals such as whiteness. He writes, awareness of universals is called conceiving, and a universal of which we are aware is called a concept. And that among the objects with which we are acquainted are not included physical objects (as opposed to sense-data), nor other peoples's minds. These are things are known to us by what I [Russell] call 'knowledge by description'... And a nice discussion of propositions. November 17.