A criminal who, having renounced reason ... hath, by the unjust violence and slaughter he hath committed upon one, declared war against all mankind, and therefore may be destroyed as a lion or tiger, one of those wild savage beasts with whom men can have no society nor security.
John LockeWhen ideas float in our mind, without any reflection or regard of the understanding, it is that which the French call reverie.
John Locke