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audience as this, and on so privileged an occasion a lecturer may well be tempted to bethink himself whether he knows of any neglected truth, any cardinal proposition, that might serve as his selected epigraph, as a last signal, perhaps even as a target. I am not thinking of those shining precepts which are the registered property of every school; that is to say—Learn as much by writing as by reading; be not content with the best book; seek side-lights from the others; have no favourites; keep men and things apart; guard against the prestige of great names;^[86] see that your judgments are your own, and do not shrink from disagreement; no trusting without testing; be more severe to ideas than to actions;^[87] do not overlook the strength of the bad cause or the weakness of the good;^[88] never be