Subjective idealism puts people's subjective spirit (consciousness, ideas, etc. ) as a starting point for understanding the world. What exists in subjective spirit is the cognitive world, which is the product of subjective spirit, not the real objective world. The main representatives are Lu Jiuyuan and Wang Shouren of China, Becquerel of Britain and Fichte of Germany.
Objective idealism holds that there exists an objective spirit independently outside the real world, which is the origin of the world, and everything in the world is produced or derived from it. Its famous representatives are Zhu of China, Plato of ancient Greece and Hegel of Germany.
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The typical example of subjective idealism is the Pythagorean school in ancient Greece. Pythagoras believes that the starting base of all things is not tangible things that can be felt, but an abstract number; Number is the starting base of everything, which dominates the world and contains the "essence" of everything; Knowing the structure and laws of the world means knowing the numbers that dominate the world.
Objective idealism originated from the God (or God) believed by Christianity in Jerusalem in the first century A.D. God created and dominated the world, and thought that only God created the world. Humans have committed "original sin" since their ancestors, and all people have degenerated into slaves of "sin". Only by believing in God and his only son, Christ Jesus, and seeking blessings can they be saved and enter the kingdom of heaven after death.
Baidu encyclopedia-idealism