A rational mind does not work under compulsion; it does not subordinate its
grasp of reality to anyone’s orders, directives, or controls; it does not
sacrifice its knowledge, its view of the truth, to anyone’s opinions, threats,
wishes, plans, or “welfare.” Such a mind may be hampered by others, it may be
silenced, proscribed, imprisoned, or destroyed; it cannot be forced; a gun is
not an argument. (An example and symbol of this attitude is Galileo.)