Integrity is the recognition of the fact that you cannot fake your
consciousness, just as honesty is the recognition of the fact that you cannot
fake existence—that man is an indivisible entity, an integrated unit of two
attributes: of matter and consciousness, and that he may permit no breach
between body and mind, between action and thought, between his life and his
convictions—that, like a judge impervious to public opinion, he may not
sacrifice his convictions to the wishes of others, be it the whole of mankind
shouting pleas or threats against him—that courage and confidence are
practical necessities, that courage is the practical form of being true to
existence, of being true to truth, and confidence is the practical form of
being true to one’s own consciousness.