saI ə lih zəm
superficial knowledge or familiarity, used as a basis for scholarly pretensions.
I myself prize classes far higher than I do lectures. From my own experience, a lecture is often a very dangerous method of teaching; it is apt to engender in the mind of men ungrounded conceit and sciolism, or the bad habit of knowing about subjects without really knowing the subject itself.(Charles Kingsley, Scientific Essays and Lectures)