Leftist: Leftist refers to a group in society that protects the interests of the middle and lower classes, supports the change of the old unreasonable social order and creates a more equal distribution of wealth and basic rights. The word "leftist" originated from the French Revolution. In the Constituent Assembly, the representatives of the third rank sit on the left and support the harmonious system, mass political movement and secularization.

Rightists: Rightists, also known as Rightists, are politically conservative or reactionary within classes, political parties and groups. Right-wing politicians generally adopt various conservative political positions and tend to safeguard the existing ruling system and vested interests.

What are the causes of leftism?

1789 French bourgeois revolution broke out. In the Constituent Assembly, members of the first-class clergy and the second-class aristocrats fought fiercely with members of the third-class bourgeoisie, urban civilians, workers and peasants. At the Constitutional Convention in September of the same year, the first-and second-class members mostly sat in the seats on the right side of the parliament, while the third-class members occupied the seats on the left. This dramatic historical scene was formed by accident, but reflected in the language, a pair of political concepts appeared in the vocabulary.