Demur

 Much madness is divinest sense
    To a discerning eye;
    Much sense the starkest madness.
    'Tis the majority
    In this, as all, prevails
    Assent, and you are sane;
    Demur, you're straightway dangerous ,
    And handled with a chain.
        Emily Dickinson, Poems, XI. (Ed. 1891).