The mistake of the Materialism is to deny the use of colored glasses, saying that the concrete material world will not be distorted by colored glasses, and that wearing colored glasses one can see the objective concrete world as it is. They say that what scientists study is objective world 1, not objective world 2. If that were true, there would be no need for philosophy. The second mistake of the Materialism is to take concrete matter as the origin and oppose abstract Tao as the origin. Although concrete matter is the real origin of the world, it is not what we need most. What we need most is abstract knowledge. The method of abstract understanding is colored glasses.

Objective idealism also denies the role of this colored glasses. They say that abstract ideas, Tao and objective laws are not what we see through colored glasses, but what the objective world itself possesses. They do not understand that Tao of the objective world itself is not the direct source of knowledge. The direct source of knowledge can only be observation of phenomena. The understanding of Tao comes into being only after the phenomena are abstracted. Tao is not the criterion of testing truth, either. The process of testing truth in practice is the process of observing new phenomena.

Subjective Idealism holds that the subjective world is the origin and the objective world is in the subjective world. But they didn’t see that the subjective world is also in the objective world. We must acknowledge that the otherize character of consciousness can only come from the objective world.

7. Conclusion

The main function of philosophy is to provide people with a holistic world view, a rational belief, the ultimate standard of value and the ultimate standard of truth. The world view provided by philosophical ontology is the world view of the whole, which embraces all valuable but maybe not objective and real things. The physical world view is one part of the metaphysical world view. The subjective world is part of the objective world. And the objective world we think and say is part of the subjective world. The objective world and the subjective world are the dialectical unity of layer upon layer nesting and infinite circulation. The abstract way of understanding is the colored glasses that we have to wear. Abstraction inevitably brings contradiction.