A pupil and a teacher. The pupil will not let anything be explained to him, for he continually interrupts with doubts, for instance as to the existence of things, the meaning of words, etc. The teacher says ‘Stop interrupting me and do as I tell you. So far your doubts don’t make any sense at all’.

(LW)

Which really reminds me of the conversations I used to have at moq.org. Let us give thanks for our liberty.