Every theory presented as a scientific concept is just that; it's a theory that tries to explain more about the world than previous theories have done. It is open to being challenged and to being proven incorrect.
“Our enemies can deal a blow to us any time they wish. They did not wait for permission to do this. They do not deal a blow with prior notice. They do not take action because they can't.”
“To praise it would amount to praising myself. For the entire content of the work... coincides almost exactly with my own meditations which have occupied my mind for the past thirty or thirty-five years.”