Six mistakes mankind keeps making century after century: Believing that personal gain is made by crushing others; Worrying about things that cannot be changed or corrected; Insisting that a thing is impossible because we cannot accomplish it; Refusing to set aside trivial preferences; Neglecting development and refinement of the mind; Attempting to compel others to believe and live as we do.
Marcus Tullius CiceroNothing in oratory is more important than to win for the orator the favour of his hearer, and to have the latter so affected as to be swayed by something resembling an impulse of the spirit impetu quodam animi or emotion perturbatione, rather than by judgment or deliberation. For men decide far more problems by hate, or love, or lust, or rage, or sorrow, or joy, or hope, or fear, or illusion, or some other inward emotion aliqua permotione mentis, than by reality or authority, or any legal standard, or judicial precedent or statute.
Marcus Tullius Cicero