Of course, many students lack this ability now. If a person wants to survive in a complex society, he must have the ability to distinguish right from wrong and think carefully, so as to protect himself and his friends. Many students are cheated into pyramid schemes after they are admitted to universities or employed. This is a good example of not being able to distinguish right from wrong. Not only did they lose their freedom and personality, but their relatives and friends were also in trouble. Many people cheat their relatives into pyramid schemes and even go crazy.