Sincerity is spiritual, and insincerity is invalid. Obviously, it is based on people's subjective spirit and belongs to subjective idealism.

Subjective idealism regards some personal subjective spirit, such as feeling, experience, mind, consciousness, concept, will, subconscious, soul and spirit, as the root and foundation of the emergence and existence of everything in the conscious world.

Objective idealism recognizes the objective world independent of human consciousness. It believes that objective spirit (concept, rationality, absolute spirit, absolute concept, etc.) exists. ) independent of the material world and before the emergence of human beings, this objective spirit produced the material world in its development process.

Therefore, the objective spirit is the first, the source of the material world, and the first; The material world is the expression and derivative of the objective spirit, which is secondary.

The objective idealism of expanding data recognizes the objective world independent of human consciousness, and emphasizes that "spiritual ontology" is the origin of the world, which is endogenous to the objective world itself, and this kind of "spiritual ontology" has the meaning of "the law of things" in unison, which makes objective idealism tend to be natural and objective unconsciously.

Subjective idealism regards everything in the outside world as the expression and product of self-subjective spirit. In fact, everything in the external world is determined by the subjective spirit of each self. Without the subjective spirit of each conscious self, there would be no things in the external world, that is to say, the objective world depends on the subjective spirit.

China's Lu Jiuyuan's theory of mind and nature "My mind is the universe", Britain's Becker's so-called "Being is perceived" and "Things are a collection of ideas" are all representative and typical subjective idealism views.

References:

Baidu encyclopedia-objective idealism

Baidu encyclopedia-subjective idealism