Keep in mind the famous sayings in history as follows:

1, don't say that everything in the world is like a dream, but know that the world is always acting strictly (Iran);

2. If the world is comfortable, the kingdom of heaven will not be regarded as the highest ideal (Britain);

3, fantasy flies too high, falls into reality, and the injury is particularly heavy;

4. What is history? It is the echo of the past to the future and the reflection of the future to the past (Hugo);

5. History is a biography of the country and mankind (Tolstoy);

6. History is the propaganda of winners (Toynbee);

7. Just as philosophy studies other people's misunderstandings, history studies other people's mistakes (Philip Goodrill);

8. Historians can lie, but history cannot (St. Petersburg).