At a class meeting, the teacher asked everyone: "What should be the mentality of success?" Zheng Lei said, "Continuously work hard, live to learn the old. " Liu Lian said, "Keep contentment, sure "I have achieved what I have achieved," said the teacher. "Your perspectives are good, and the combination is accurate: a successful mentality requires constant effort and contentment. ". which of the following can't be launched according to the teacher? ["Zheng Lei and Liu Lian's views are not comprehensive.", 'A person with a contentment and happiness mentality may be a person with a success mentality.', 'A person with a mentality of success must be a person with a mentality of continuous hard work.', 'A mentality of constant hard work is as important as a contentment.']