Between Knowing How and Knowing That

While anti-intellectualists tend to identify knowing how with having a certain ability or being able to do something, we are sug- gested by intellectualists to distinguish knowledge from ability to do things; one may be able to do certain actions without knowing how to do them. Re- ally? If there is a basic distinction between \u201cknowing a way to do things with practical MOPS\u201d and \u201cability\u201d, why not to say that Ryle was confused in over- lapping the conception of \u201cknowing how\u201d and the conception of \u201cbeing able to\u201d? With these worries, I decided to re-read Engel 2007 to find suggestions on this issue (and to find a justification of my participating to the volume in his honor). And I have found further worries. In this paper I will therefore present some problems raised by reading Engel on \u201cTaking seriously Knowl- edge as a Mental State\u201d