Former U. S. President Lincoln said: "The most brilliant scammer may deceive all people at one time or some people at all times, but it is impossible to deceive all people at all times. ". If the above assertion is true, which of the following assertions must be false? ['Lincoln may be deceived at some point.', 'Lincoln may not be cheated at any time.', 'there is no one who may not be deceived at some point.', 'there is no one at a time.']