What is the basic problem of philosophy?

The basic problem of philosophy is the relationship between thinking and existence. It includes two aspects: first, who is the essence of the world, consciousness and matter, spirit and nature, that is, which is primary and which is secondary; Second, whether thinking can recognize or correctly understand the existing problems.

The main contents of philosophy include the following aspects: materialism, dialectics and epistemology.

The main contents of materialism are: the dialectical relationship between matter and consciousness, the regularity of material movement;

The main contents of dialectics: contact view, development view and contradiction view;

The main contents of epistemology: phenomenon and essence, practical viewpoint.