cli­chés are the        com­mon­places by which we begin a dis­course        there is no way to        put down cli­ché in the begin­ning because if there was        nothing in com­mon in the utte­rances with which we addres­sed        each other the­red be no way that we could unders­tand what we        were saying in some sense there is no ade­quate theo­ry of how        we unders­tand what we say to each other one of the most        depres­sing things about the present attempts at know­ledge        is the array of for­mal machines we have for explai­ning how we        know what we say and how poor­ly they explain it