Reckless generalization refers to a logical error that hastily makes a general conclusion based on only a few cases without accumulating sufficient materials for generalization. Based on the above definitions, Which of the following are not considered lightly. ["It's easy to make money by doing WeChat! A relative of mine started doing WeChat at the beginning of the year and now I have bought a car.", 'In order to make a common choice with 20 million elites, please come and buy our online paid courses.', 'My friend said that her philosophy class is difficult, and my philosophy class is also difficult.', 'I eat burgers almost every day, but my weight has not changed, so eating burgers does not cause obesity.']